Mary would like to join the track team. At the end of the first week of practice, Mary could run a lap in 2 minutes and 5 seconds. At the end of the second week of practice, Mary could run a lap in 1 minute and 58 seconds. After another week of practice, Mary could run a lap in 1 minute and 51 seconds. Mary continued to practice.
Answers
Answer:
1 minute and 44 seconds... 1 minute and 37 seconds. a pattern of -7 seconds
Related Questions
What would this equation be of a line into slope-intercept form, simplifying all fractions
9x+12y=-108
Answers
Answer:
y = -3/4 x - 9
Step-by-step explanation:
Slope intercept form is
y = mx+b where m is the slope and b is the y intercept
9x+ 12y = -108
Subtract 9x from each side
12y = -9x - 108
Divide by 12
12y/12 = -9x/12 -108/12
y = -9/12 x - 108/12
y = -3/4 x - 9
Answer:
y = (-3/4)x - 9
Step-by-step explanation:
Given equation,
→ 9x + 12y = -108
Now we have to,
→ convert into slope-intercept form.
Solving for the value of y,
→ 9x + 12y = -108
→ 12y = -9x - 108
→ y = (-9x - 108)/12
→ y = (-9/12)x - 9
→ y = (-3/4)x - 9
Hence, the form is y = (-3/4)x - 9.
Help, with thig math question....
Answers
the single biggest factor accounting for how people decide to vote is ______.
Answers
The single biggest factor accounting for how people decide to vote is difficult to pinpoint with certainty as it can vary depending on the individual and the specific election.
The single biggest factor accounting for how people decide to vote is often considered to be their "party identification." Party identification refers to the political party that an individual feels a strong affiliation with, and it plays a significant role in shaping their voting choices.
People typically vote for candidates from the party they identify with, as they believe that party best represents their values and interests.
However, research suggests that factors such as political party affiliation, candidate's perceived competence and charisma, their stance on important issues, and their past track record can all play a significant role in how people decide to vote.
Additionally, external factors such as media coverage and political advertisements can also influence voter decisions. Ultimately, the decision to vote is complex and multifaceted, and can be influenced by a variety of factors.
Learn more about specific election
brainly.com/question/2999750
#SPJ11
Try the following puzzle:
A bat and ball cost $1.10.
The bat costs one dollar more than the ball.
How much does the ball cost?
Answers
Answer:
10 cents
Step-by-step explanation:
the bat cost 1 dollar so subtract 1 dollar from 1.10 and you are left with .10 or 10 cents
Answer:
the ball costs $0.05
Step-by-step explanation:
if the total is $1.10, and the bat is $1 more than the ball, you do
1+2x=1.10. do the algebra, and you get 0.05. hope this helps.
If J is the centroid of cde, de=52, fc=15, he=14, find each missing measure
Answers
Answer:
\(DG = 26\)
\(GE = 26\)
\(DF = 15\)
\(CH = 14\)
\(CE = 28\)
Step-by-step explanation:
The figure has been attached, to complement the question.
\(DE = 52\)
\(FC = 15\)
\(HE = 14\)
Given that J is the centroid, it means that J divides sides CD, DE and CE into two equal parts respectively and as such the following relationship exist:
\(DF = FC\)
\(CH = HE\)
\(DG = GE\)
Solving (a): DG
If \(DG = GE\), then
\(DE = DG + GE\)
\(DE = DG + DG\)
\(DE = 2DG\)
Make DG the subject
\(DG = \frac{1}{2}DE\)
Substitute 52 for DE
\(DG = \frac{1}{2} * 52\)
\(DG = 26\)
Solving (b): GE
If \(DG = GE\), then
\(GE = DG\)
\(GE = 26\)
Solving (c): DF
\(DF = FC\)
So:
\(DF = 15\)
Solving (d): CH
\(CH = HE\)
\(CH = 14\)
Solving (e): CE
If \(CH = HE\), then
\(CE = CH + HE\)
\(CE = 14 + 14\)
\(CE = 28\)
Solve following equations by reducing their augmented matrix to the reduced echelon form
x+2y+z=2
2x+y+2z= -1
2x+3y-z = 9
Answers
Answer:
Step-by-step explanation:
it is actually in the textbook pg 119
Its worth 25 points please get right
Select the correct answer.
Gas station A has posted a chart that shows the price of gasoline in terms of the number of gallons.
Gallons price
3 9.15
5 15.25
7 21.35
Gas station B has an equation that represents the price, p, for gallons, g, of gasoline as p = $3.08g.
Which gas station sells gasoline at a lower rate? What price does it charge?
A.
Gas station A sells gasoline at a lower rate. Its price is $3.08 per gallon.
B.
Gas station B sells gasoline at a lower rate. Its price is $3.05 per gallon.
C.
Gas station A sells gasoline at a lower rate. Its price is $3.05 per gallon.
D.
Gas station B sells gasoline at a lower rate. Its price is $3.08 per gallon.
Reset Next
Answers
Gas station A sells gasoline at a lower rate. Its price is $3.05 per gallon
How to determine which gas station sells gasoline at a lower rate?
In order to determine which gas station sells gasoline at a lower rate, we need to calculate the price of one gallon at each gas station using the given information.
Given that:
For Gas station A, the price of 3 gallons is 9.15, so we can calculate the price of 1 gallon as:
price of 1 gallon = 9.15/3 = $3.05
For Gas station B, the equation that represents the price, p, for gallons, g, of gasoline as p = $3.08g. To calculate the price of 1 gallon, substitute g = 1 into the equation:
p = $3.08g
price of 1 gallon = $3.08 × 1 = $3.08
The price of 1 gallon in Gas station A ($3.05) is less than the price of 1 gallon Gas station B ($3.08).
Therefore, Gas station A sells gasoline at a lower rate. Its price is $3.05 per gallon. Option C is the answer
Learn more about rate on:
https://brainly.com/question/19493296
#SPJ1
8Is there enough information to determine whether ADEF has been dilated to ADUV from point R? If so, what is thescale factor? (G.SRT.A.2)E
Answers
Yes, there is enough information to determine that ΔDEF has been dilated to ΔDUV because the ratio of the corresponding sides is equal, and all the dimensions required to determine the scale factor are present.
To calculate the scale factor, find the ratio of any corresponding sides
That is,
\(\begin{gathered} If\text{ }\Delta DEF\text{ \textasciitilde}\Delta\text{DUV} \\ \text{Then,} \\ \frac{DE}{DU}=\frac{EF}{UV}=\frac{DF}{DV} \\ \frac{(77+14)}{14}=\frac{117}{18}=\frac{52}{(52-44)} \\ \frac{91}{14}=\frac{117}{18}=\frac{52}{8} \\ =\frac{13}{2} \end{gathered}\)Therefore, the scale factor is 13/2
Answer is Option E.
If the value at the 55th percentile of the distribution of WINS over the 44 seasons equals 23.5, by how many WINS can one occurrence of the maximum value for WINS be reduced, yet still NOT change the value at the 55th percentile (holding all other values constant)
Answers
To determine the number of WINS by which one occurrence of the maximum value can be reduced without changing the value at the 55th percentile.
We need to find the maximum value in the dataset and evaluate its impact on the percentile.
Let's assume the maximum value for WINS is X. To maintain the value at the 55th percentile (23.5), we need to find the threshold value below which the dataset will not be affected by reducing the maximum value.
We can start by arranging the data in ascending order and finding the value at the 55th percentile. Since we have 44 seasons, the 55th percentile would be approximately at the (55/100) * 44 = 24.2nd value.
Now, we compare the value at the 24th position and the value at the 25th position in the dataset. If both of these values are below 23.5, reducing the maximum value by any amount will not change the value at the 55th percentile.
For example, if the value at the 24th position is 23 and the value at the 25th position is 24, reducing the maximum value by any amount will still keep the 55th percentile at 23.5.
However, if either the value at the 24th position or the value at the 25th position (or both) is 23.5 or higher, reducing the maximum value will impact the 55th percentile.
Therefore, to accurately determine the number of WINS by which one occurrence of the maximum value can be reduced without changing the value at the 55th percentile, we need to know the specific values at the 24th and 25th positions in the dataset.
Learn more about approximately here:
https://brainly.com/question/31695967
#SPJ11
g(t) = t^2 - 5 f(t) = -31 - 4 Find g((-4t)
Answers
I plugged in -4 for t and found the answer.
Good luck!
Helppppppppppppppppppppppppp
Answers
Answer:
ooh another quintessential quintuplets fan pfp I see
Find the volume of the sphere.
Either enter an exact answer in terms of \piπpi or use \dfrac{22}{7}
7
22
start fraction, 22, divided by, 7, end fraction for \piπpi.
Answers
The volume of sphere is 1437.33 if the given radius is 7 .
What is Surface area of sphere ?
Surface area of sphere can be defined as the product of four , pi and square of radius. And here the value of pi could be 3.14 or 22/7 .
Given ,
Volume of a sphere = 4/3πr³
π = 22/7
r = 7
Volume of a sphere = 4/3πr³
= 4/3 * 22/7 * 7³
= 4/3 * 22/7 * 7 * 7 * 7
= (4 * 22 * 7 * 7 * 7) / (3 * 7)
= 30,184/21
= 1437.3333333333
Volume of a sphere = 1,437.33
Therefore, the volume of sphere is 1437.33 if the given radius is 7 .
To learn more about Surface area of sphere from the given link.
https://brainly.com/question/14692728
#SPJ1
Four friends ordered two and a half foot long sandwiches at Subway.
3
Edgar ate
-
of a sandwich. Joel and Arlene ate of a sandwich each.
ate of a
4
How much sandwich is left for Rocky?
Answers
Based on the information, the sandwich that is left for Rocky is 1 1/6.
How to illustrate the information?From the information, four friends ordered two and a half foot long sandwiches at Subway. Edgar ate 1/3 of a sandwich. Joel and Arlene ate 1/2 each of a sandwich.
It should be noted that this has to do with fractions. This will be illustrated thus:
= (2 1/2 - 1/3 - 1/2 - 1/2)
= 2 1/2 - 1 1/3
= 2 3/6 - 1 2/6
= 1 1/6
Therefore, it should be noted that based on the information, the sandwich that is left for Rocky is 1 1/6.
Learn more about fractions on:
brainly.com/question/17220365
#SPJ1
Four friends ordered two and a half foot long sandwiches at Subway. Edgar ate 1/3 of a sandwich. Joel and Arlene ate 1/2 each of a sandwich. How much sandwich is left for Rocky?
Which equation below can be used to determine the missing angle in the triangle?
Select one:
x+75+60=180
75x+60x=180
75+60=x
x+75+60=90
Answers
Answer:You can use this fact to solve for the missing angle of a triangle. ... Remember -- the sum of the degree measures of angles in any triangle equals 180 degrees. Below is a picture of triangle ABC, where angle A = 60 degrees, angle B = 50 degrees and angle C = 70 degrees. ... Let x = the degree measure of each angle.
Step-by-step explanation:
Sarah has a savings account. This month she deposits four paychecks. Each
paycheck is for $125.25. She makes four withdrawals to buy groceries. Each
withdrawal is for $45. She also makes another withdrawal of $400. What is the
total change in Sarah's account?
A - $1,279
B - $79
C $281
D $321
Answers
Answer:
Its b
Step-by-step explanation:
I used a calculator B)
Answer:
B.-79
Step-by-step explanation:
Ok since Sarah deposited four 125.25 paychecks she has $501 dollars in her bank to spend this is because 125.25 x 4= 501 , then sarah makes four withdrawls each withdrawl is for 45 dollars 45 x 4= 180 then sarah withdraws 400 dollars so if you add all her withdrawls together 400+180=580 so she has spent 580 dollars she had 501 in her account to spend so 580-501=79 this is wrong because she is negitive but taking the highest number and subtracting the smaller one is easier so she has -79 dollars in her account
What number goes in the
missing space?
Answers
For the simple linear equation below, what is the y-coordinate of the ordered pair when the x-coordinate is −5?
y=−7x
Enter your answer in the box.
(-5, ) what goes after 5
Answers
Answer:
-9
Step-by-step explanation:
Please help with this question !! Molly earned $430 mowing lawns over the summer. She put 60% of what she earned into her savings account.
How much money did Molly put into her savings account?
Enter your answer in the box.
Answers
Answer:
$258
Step-by-step explanation:
60% of $430 is ...
0.60 × $430 = $258
Molly put $258 into her savings account.
Answer:
$258 dollars total
Step-by-step explanation:
YES THIS IS CORRECT I TOOK THE K12 QUIZ
The following data are for an ongoing production decline: - agi=165Mscf/day - Di=0.09/yr - b=0.51 What is the Estimated Ultimate Recovery (EUR) for this reservoir? The units for your answer should be MMscf and your answer should be precise to 0 decimal places: XXXX
Answers
Rounding to 0 decimal places, the Estimated Ultimate Recovery (EUR) for this reservoir is approximately 5,988 MMscf.
To calculate the Estimated Ultimate Recovery (EUR) for the reservoir, we can use the Arps equation, which relates the cumulative production (Q) to time (t) for a declining reservoir:
Q = (b / Di) * ((t + Di)^(-b) - Di^(-b))
Given the following data:
Initial production rate (agi): 165 MMscf/day
Decline rate (Di): 0.09/yr
Hyperbolic exponent (b): 0.51
We want to find the EUR, which is the cumulative production at infinite time (t = ∞).
At infinite time, the Arps equation simplifies to:
EUR = (b / Di) * (Di^(-b))
Substituting the given values into the equation:
EUR = (0.51 / 0.09) * (0.09^(-0.51))
EUR ≈ 5.67 * (1.056)
EUR ≈ 5.98752 MMscf
Rounding to 0 decimal places, the Estimated Ultimate Recovery (EUR) for this reservoir is approximately 5,988 MMscf.
for such more question on Estimated Ultimate Recovery
https://brainly.com/question/3617398
#SPJ8
Suppose that people check their coats in a checkroom. if all claim checks are lost and the coats are randomly returned, what is the probability that all the people will get their own coats back?
Answers
The probability that all the people will get their own coats back is 1/7.
What is probability?Likelihood is the part of science concerning mathematical depictions of how likely an occasion is to happen, or how likely it is that a suggestion is valid. The likelihood of an occasion is a number somewhere in the range of 0 and 1, where, generally talking, 0 shows difficulty of the occasion and 1 demonstrates sureness. The higher the likelihood of an occasion, the almost certain it is that the occasion will happen. A basic model is the throwing of a fair coin. Since the coin is fair, the two results are both similarly plausible; the likelihood of "heads" rises to the likelihood of "tails"; and since no different results are conceivable, the likelihood of all things considered "heads" or "tails" is 1/2.
Learn more about probability, refer:
https://brainly.com/question/27181015
#SPJ4
Which value is equivalent to 5 + 4 x 2?
A) 11
B) 13
C) 18
D) 22
Answers
8 + 5 = 13
B, is the correct answer
USING BODMAS SO MULTIPLICATION IS FIRST c)13
Question 1 options:
The length of each side of the base of a square pyramid is 20 m. The pyramid is 30 m tall.
The volume of the pyramid is ___ cubic meters.
Answers
Answer:
4000 \(m^{3}\)
Step-by-step explanation:
V = 1/3(Bh) where B is the area of the base and h is the height of the pyramid
B = 20(20) = 400 h = 30
V = 1/3(400)(30) = 4000 \(m^{3}\)
what is (4/9)^2 as fraction
Answers
Answer:
22/9
Step-by-step explanation:
Which polygons are congruent?
Select each correct answer.
5
20
20
25
25
Activate Windo
Answers
Answer:
All except the 3rd one
the one with 20 and 25
Stevie has a yard cleanup business. He initially spent $175 for equipment (mower, rakes, bags, etc. ). He charges $12 hours for cleanup. How many hours of work will he need to do in order to make at least $1200? (Let hh = number of hours worked)
Answers
Stevie will need to work at least 150 hours to make at least $1200 after accounting for the initial cost of equipment.
How to find hours of work?to find the business hours of work, Let's start by defining the variables given in the problem:
The initial cost of equipment is $175.
Stevie charges $12 per hour for cleanup.
Stevie wants to make at least $1200.
The number of hours worked is represented by h.
Now, we can set up an equation to solve for h:
Total earnings - Total cost = Desired profit
We can express the total earnings as the product of the hourly rate and the number of hours worked:
Total earnings = $12h
The total cost includes the initial cost of equipment plus any additional costs incurred during cleanup:
Total cost = $175 + additional costs
Since we don't know the value of the additional costs, we'll leave it as a variable.
Substituting these expressions into the equation, we get:
$12h - ($175 + additional costs) = $1200
Simplifying the equation, we get:
$12h - $175 - additional costs = $1200
$12h - $1375 = additional costs + $1200
$12h - $1375 = additional costs
Now we have an equation that relates the number of hours worked to the additional costs incurred during cleanup. We want to find the minimum value of h that satisfies this equation, since Stevie wants to make at least $1200.
To do this, we need to estimate the additional costs incurred during cleanup. Let's assume that Stevie spends an average of $4 per hour on additional costs (e.g., gasoline, trash bags, etc.). Then, the equation becomes:
$12h - $1375 = $4h + $175
Simplifying further, we get:
$8h = $1200
h = 150
Therefore, Stevie will need to work at least 150 hours to make at least $1200 after accounting for the initial cost of equipment and the estimated additional costs incurred during cleanup.
Learn more about Business
brainly.com/question/15826604
#SPJ11
If 12 > -15, which of the following must be true?
12 is to the left of -15 on a number line.
-15 is to the right of 0 on a number line.
12 is to the right of -15 on a number line.
12 is to the left of 0 on a number line.
Answers
Answer:
12 is to the right of -15 on a number line.
Step-by-step explanation:
Hope this helps! - CJ
How to graph an equation.
Answers
Answer:
Below
Step-by-step explanation:
To graph an equation, we must have a y-intercept and a slope. Now, our equation is y = mx + b
We just replace the slope with 'm' and the y-intercept with 'b'. Let's say that our slope is 4 and y-intercept is 5. Then our equation will be y = 4x + 5.
Hoped this helped.
Because it only considers the worst possible outcomes, the ________________ decision criterion
has the least downside risk.
A. Laplace
B. maximin
C. minimax regret
D. maximax
Answers
Because it only considers the worst possible outcomes, the maximin decision criterion has the least downside risk.
Wald's maximin model is a non-probabilistic decision-making model in game theory and decision theory.
It says that while choosing a course of action, the decision-maker should choose the one whose greatest (highest) loss is better than the least (minimum) loss of all other options that are feasible under the current conditions. The approach that maximizes one's own lowest payout is referred to as "maximin" in non-zero-sum games.
When given a choice between numerous options, the maximin approach instructs managers to consider each option's worst-case outcome. This presupposes that each choice has a number of possible outcomes.
To know more about maximin visit the link:
https://brainly.com/question/17083768?referrer=searchResults
#SPJ4
I don’t remember how do to any of them
Answers
Answer:
\(12x+9\) and \(99\)° are supplementary to each other.
Step-by-step explanation:
Supplementary means that two angles added together make 180°.
Looking at the graph, you can see that angles \(12x+9\) and \(99\)° both combined make 180°, so they are considered supplementary.
Calculator
1
TE
One day a jewelry maker sold 42% of the 250 pieces of jewelry at
the store. How many pieces of jewelry did the jewelry maker sell that
day?
li
TE
O 6 pieces of jewelry
It
O 17 pieces of jewelry
It
105 pieces of jewelry
It
145 pieces of jewelry
It
It
Answers
Answer:
C. 105 pieces of jewelry
Step-by-step explanation:
Given the following data;
Percentage of sales, Ps = 42%.
Total number of jewelry, T= 250.
To find the pieces of jewelry sold for the day, we would multiply the the total number of jewelry by the percentage of sales;
\( Pieces \; sold = Ps * T\)
\( Pieces \; sold = \frac{42}{100}*250\)
\( Pieces \; sold = 0.42 * 250\)
Pieces sold = 105 jewelry.
Therefore, 105 pieces of jewelry were sold.