Step-by-step explanation:
so, the best way to help you is to help you understand how to solve such problems yourself.
let me know if you still don't understand something :
4.
this you can solve just by common sense.
let's see if you understand it with smaller numbers :
1 ball costs $3. how much will 2 balls cost ? well, twice as much : 2×3 = $6.
how much will 3 balls cost ? hmmm ? three times as much : 3×3 = $9.
and so on.
so, how much will 10 balls cost ? right, ten times a much : 10×3 = $30.
now,
8 eggs for 3 cups of flour.
how many eggs for 30 cups of flour ? you notice that 30 is 10 times 3, right ?
yes, ten times a many eggs : 10×8 = 80 eggs.
5.
3 quarters simply means 3/4.
if we want to know how much 3/4 of something is, we have to multiply that something by 3/4.
so, for 60 students :
60 × 3/4 = 180/4 = 45 students bring a lunch from home.
6.
similar to 4.
5 books in 2 days.
how many books in 8 days ?
you notice that 8 is 4 times 2 ?
so, yes, 4 times as many books : 4×5 = 20 books.
7.
now we are getting into areas, where we need more thinking and apply formal mathematics.
10 pounds jam requires 5 pounds apples.
8 pounds jam require x pounds apples.
the easiest way is to use ratios :
jam to apples = 10/5 = 2/1 = 2
8 pounds jam to x pounds apples must follow the same ratio, as we are using the same recipe.
8/x = 2
8 = 2x
x = 4
so, to get 8 pounds of jam we need 4 pounds of apples.
8.
it seems they were very, very hungry ...
Jenny ate 6 1/4 pizzas.
Dolly ate 5 1/4 pizzas.
6 1/4 = (6×4 + 1)/4 = 25/4
5 1/4 = (5×4 + 1)/4 = 21/4
so, Jenny ate 25/4 / 21/4 = 25/21 = 1.19047619... times more pizza.
or in other words she ate
25/4 - 21/4 = 4/4 = 1 more pizza.
9.
so, he wins 5 of every 15, that is a ratio of 5/15 = 1/3.
he had 75 matches. 1/3 of 75 matches (see also 5.) means
75 × 1/3 = 75/3 = 25.
he won 25 matches.
10.
Mrs. Paul is 145 cm tall.
the daughter is 1/5 of that. see 5. and 9. :
1/5 of 145 means
145 × 1/5 = 145/5 = 29 cm
her daughter is 29 cm tall (a baby).
Each lap around a park is 0.58 miles. Jessica walked 3.25 laps around the park. How many miles did Jessica walk around the park?
A.) 1.741 miles
B.) 1.865 miles
C.) 1.885 miles
D.) 1.785 miles
A solid with surface area 50units^2 is dilated by a scale factor of K to obtain a solid surface area 200units^2. Find the value of K.
The value of K is 2.
Let's denote the scale factor as K. The surface area of a solid after dilation is directly proportional to the square of the scale factor.
We are given that the initial surface area of the solid is 50 units^2, and after dilation, the surface area becomes 200 units^2.
Using the formula for the surface area, we have:
Initial surface area * (scale factor)^2 = Final surface area
50 * K^2 = 200
Dividing both sides of the equation by 50:
K^2 = 200/50
K^2 = 4
Taking the square root of both sides:
K = √4
K = 2
Therefore, the value of K is 2.
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What value of n makes the equation true?
2/3n = -12
n=
Answer:
-18
Step-by-step explanation:
\(\frac{2}{3}n=-12 \\ \\ \frac{3}{2} \cdot \frac{2}{3}n=\frac{3}{2}(-12) \\ \\ n=-18\)
Jana has 2 red pens in her backpack. If this is 25% of the total number of pens, how many
pens are in her backpack?
nts
Select the correct response:
800
0.5
8
1200
Divide number of pens given by percentage:
2/0.25 = 8
She has 8 pens total.
what is 88 6/12 rounded to the nearest whole number
Answer: 88 1/2
Step-by-step explanation:
easy
Answer:
89
Step-by-step explanation:
WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY!!!
Ez question i just want ppl to have brainlest Question 2(Multiple Choice Worth 4 points)
(06.03 LC)
Solve 0.15 ÷ 3 = ___.
0.01
0.05
0.07
0.10
help I have a slow brain
Answer:
It is the third option
Step-by-step explanation:
I hope this helps you
if a thing is not a flower, then it is not a plant.
shorthand
Answer:
False, plants can be anything, take grass and trees and cacti, plant just need photosynthesis.
Step-by-step explanation:
You see, plants aren't based on if they are a flower or not
Christian is conducting a survey to find out what technology device is the most popular. He wants to make sure his question is relevant to his topic. What question should Christian ask on his survey? (2 points) How many hours do you spend on technology every day? What do you use your technology devices for? Do you have a technology device? What technology devices do you use every day?
Answer:
What technology devices do you use everyday?
Step-by-step explanation:
Christian is trying to see which technology device is the most popular. The first question doesn't ask about different types of technology devices, but rather the amount of time spent on them. The second asks what they are used for and the third asks if you have a technology device. Neither of these questions answers which device is the most popular, except for the fourth or last option. Which technology devices are used everyday can help him see which one is the most popular.
Answer:
What technology devices do you use everyday?
Step-by-step explanation:
Christian is trying to see which technology device is the most popular. The first question doesn't ask about different types of technology devices, but rather the amount of time spent on them. The second asks what they are used for and the third asks if you have a technology device. Neither of these questions answers which device is the most popular, except for the fourth or last option. Which technology devices are used everyday can help him see which one is the most popular.
Margaret used 12 gallons of gas to drive 252 miles. How many miles can Margaret drive with 16 gallons of gas?
Answer:
336
Step-by-step explanation:
if she can drive 252 miles with 12 gallons, you must divide 252 and 12 to figure out how many miles she can get per gallon. Once you find that answer, you multiply that by 16 gallons.
Answer:
282
Step-by-step explanation:
Hurrryyyyy upppppp plzzzz helpppp meeeeee rightttt nowwwwwwww
Answer:
It’s the third one
Step-by-step explanation:
-1.1x+6.4>-1.3
-1.1x>-1.3-6.4
-1.1x>-7.7 multiplied by -1 gives 1.1x<7.7
Divided by 1.1 you get x<7
Six identical right-angled triangles are arranged to make a rectangle.
7 cm
? cm
Calculato the length of the rectangle.
The calculated length of the rectangle is 10.5 cm
Calculating the length of the rectangle.From the question, we have the following parameters that can be used in our computation:
Six identical right-angled triangle
The length of the right-angled triangle is
base length = 7 cm
based on the arrangement, we have
Rectangle length = base length + 1/2 * base length
So, we have
Rectangle length = 7 + 1/2 * 7
Evaluate
Rectangle length = 10.5
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find the vertex f(x)=2(x+14)^2-6
Answer:
(-14,-6)
Step-by-step explanation:
The function p(s)=−10s2+110s−180 represents a company's profit p made on selling a product for s dollars per unit. Calculate and interpret p(6). (1 point)
1. If the company wants to make a profit of $6, they need to sell units for either $2 or $9.
2. The company's profit from selling their product for $6 per unit is $120.
3. If the company wants to make a profit of $6, they need to sell either 2 or 9 units.
4. The company's profit from selling 6 units is $120.
Answer:
2. The company's profit from selling their product for $6 per unit is $120.
Step-by-step explanation:
If we graph this function on a 2-axis plane such that the horizontal axis (x) represents \(s\), or the product's price per unit and the vertical axis (y) represents \(p(s)\), or the profit made by selling the product at \(s\) dollars, we'll find that the \(p\)-coordinate of the point where \(s=6\) is 120. Hence, $120 profit will be made if the product is sold at $6 per unit.
See the attached image for a graph.
Can somebody help me find the vertex, AOS, and solution
I need help on 8 and 9
Please help me Asp
Answer:
Vertex for 8: (-1,-1) Aos for 8: -1
Vertex for 9 (5,0) Aos: 5
I’m not sure about the solution because I’m not sure what you mean by solutions. So sorry!!! :-(
evaluate and order each quotient From least to greatest identify any expressions That are unidentified
The quotients in this problem are given as follows:
-30/6 = -5.0/(-20) = 0.-44/-4 = 11.21/(-7) = -3.-(-3/-2) = -1.5.The order of these quotients, from least to greatest, is given as follows:
-30/6, 21/(-7), -(-3/-2), 0/(-20), -44/-4.
How to obtain these quotients?The quotients are obtained with the division of two values, however, signal rules also have to be considered.
The quotients in this problem are given as follows:
-30/6 = -5. -> different signals generate a negative quotient.0/(-20) = 0. -> 0 divided by a non-zero constant results in zero.-44/-4 = 11. -> same signals, hence the quotient is positive.21/(-7) = -3. -> different signals generate a negative quotient.-(-3/-2) = -1.5. -> positive inside the parenthesis, however the negative changes the sign.More can be learned about quotients at https://brainly.com/question/10061441
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Find the number that makes the ratio equivalent to 9:4.
72:
(e) how many ways are there to place a total of m distinguishable balls into n distinguishable urns, with some urns possibly empty or with several balls?
The formula for the number of ways to distribute `m` distinguishable balls into `n` distinguishable urns is: C(m + n - 1, n - 1)
The formula for the number of ways to distribute `m` distinguishable balls into `n` distinguishable urns is:
C(m + n - 1, n - 1)
where C(n, k) represents the binomial coefficient, also known as "n choose k".
In this case, the formula becomes:
C(m + n - 1, n - 1)
This formula accounts for the fact that we can think of placing `m` balls and `n-1` dividers (or "bars") in a line, and the number of ways to arrange them represents the distribution of balls into urns.
The m + n - 1 represents the total number of spaces in the line (balls + dividers), and choosing n-1 spaces to place the dividers separates the line into n sections, corresponding to the urns.
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What is the probability that the battery life for an ipad mini will be at least 11 hours?
Answer:
0.2857
Step-by-step explanation:
We want to determine,
The probability that the battery life is at least 11 hours is 0.2857.
Use the drop-down menus to complete the sentence. the transformation is because the preserved.
A transformation is said to be not rigid because the segments is preserved.
A transformation is a function that maps one set of points to another set of points. There are different types of transformations, including translation, rotation, reflection, dilation, and combinations of these. Each type of transformation preserves certain properties of the shape or object.
The properties that are preserved during a transformation depend on the type of transformation
Similarly, a rotation is a transformation that rotates a shape or an object around a fixed point. During a rotation, the distance between any two points on the shape or object is preserved, but the direction may change. A reflection is a transformation that flips a shape or an object across a line. During a reflection, the distance between any two points on the shape or object is preserved, but the orientation may change.
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1. nonrigid
2. segment lengths are not
(10 points) two companies market new batteries targeted at owners of personal music players. duratunes claims a mean battery life of 11 hours, while rockready advertises 12 hours. the standard deviations are 2 hours for duratunes and 1.5 hours for rockready. (1) you are headed for 8 hours at the beach. which battery is most likely to last all day?
The rockready battery is most likely to last all day at the beach.
When you're headed to the beach and you have to choose between two batteries that are marketed to owners of personal music players, you would want to know which battery is most likely to last all day. Duratunes claims a mean battery life of 11 hours with a standard deviation of 2 hours, while Rockready advertises 12 hours with a standard deviation of 1.5 hours. The answer to the question is Rockready battery. The explanation is given below:Let's assume that the distribution of battery lives is normal for both batteries. Thus, for the Duratunes battery, the mean (μ) and standard deviation (σ) are 11 hours and 2 hours, respectively. The mean and standard deviation for the Rockready battery are 12 hours and 1.5 hours, respectively. We must compute the probabilities that each battery will last at least 8 hours.Below is the formula to calculate the probabilities for both batteries: z = (x - μ) / σHere, x represents the number of hours the battery lasts. We get the following values of z:Duratunes battery: z = (8 - 11) / 2 = -1.5Rockready battery: z = (8 - 12) / 1.5 = -2.67We will use the normal distribution table to determine the probabilities associated with these z-values. We will find the area to the left of each z-value in the table. Because we want to find the probability that each battery lasts at least 8 hours, we will subtract this probability from 1. In other words:P(Duratunes battery lasts at least 8 hours) = 1 - P(z < -1.5) = 1 - 0.0668 = 0.9332P(Rockready battery lasts at least 8 hours) = 1 - P(z < -2.67) = 1 - 0.0038 = 0.9962Therefore, the Rockready battery is most likely to last all day at the beach.
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what is the missing number in the sequence: 4, 6, 10, 18, ___, 66.
Answer:
34
Step-by-step explanation:
Each number is added to by a doubling sequence
4, 4+2=6, 6+4=10, 10+8=18, 18+16=34, 34+32=66
PLEASE HELP ME ASAP!!!!!! USE THIS LINK I WILL GIVE BRAINLEAST
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Answer:
okie
Step-by-step explanation:
Answer:
Ok
Step-by-step expl
A student makes paper airplanes. She can make 3 airplanes from each sheet of paper.
She wants to have 105 paper airplanes ready for her birthday party. She has 9 paper
airplanes in her paper airplane hanger left over from last year. What is considered the
independent variable in this situation?
A. 3 airplanes from each sheet
B. 105 paper airplanes
O
C. 9 paper airplanes in the hanger
D. 32 sheets of paper
Answer:
3 airplanes from each sheet
Answer:
3 airplanes from each sheet Hope it helps :)
Step-by-step explanation:
Convert 20 milligrams into grams.
Can somebody help ?
Answer:
0.02
Step-by-step explanation:
Answer:
20 = 0.02
milligrams gram
Step-by-step explanation:
divide the mass value by 1000
i study
Help me please, I have a asked this question a lot of times. Please!!
Answer:
line ML are parallel to line OP
Step-by-step explanation:
Sally puts $1,200 into a savings account at the end of every year to save for a car. The account
pays interest of 7% per year. She needs $24,168.77 for the car. How many years does it take for
the account balance to accumulate to the value of the car?
Answer: 13
Please show all work and don't use excel
The number of years that it will take for the account balance to accumulate to the value of the car would be = 19 years.
How to calculate the number of years needed for Sally to save?The principal amount of money Sally deposits = $1,200
The interest rate for each year = 7%
The time = 1 year
Simple interest = principal×time × rate/100
= 1,200×1×7/100
= $84
In a year the money would be = 1200+84 = $1284
X years = $24,168.77
make X the subject of formula;
X = 24,168.77/1284
= 18.8 = 19 years
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Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced before the second card is selected. Find the probability of selecting a three and then selecting a fiveThere are 4 threes in the deck so the probability of selecting a three is 4/52. Then, for the second draw, there are 4 fives as well but, since you already selected a card and didn't replace it, there are now only 51 cards in the deck so the probability of selecting a five is 4/51The probability of both events happening is the product of the two individual probabilities so 4/52 * 4/51 = 16/2652 = 4/663 = 0.6%
The probability of selecting a three and then selecting a five is 0.6%
What is meant by probability?Probability is a branch of mathematics that deals with numerical descriptions of how likely an event or statement is to occur.
Probability is computed by dividing the number of possible outcomes by the total number of possible outcomes. Probability and odds are two distinct ideas. Odds are calculated by dividing the probability that something will occur by the probability that it will not occur.
Because there are four threes in the deck, the probability of picking one is 4/52.
Then, for the second draw, there are four fives as well, but because you already chose a card and did not replace it, there are only 51 cards in the deck, therefore the likelihood of drawing a five is 4/51.
The product of the two individual probabilities is the likelihood of both events occurring.
So,
(4/52) × (4/51)= 16/2652
= 4/663
= 0.6%
Hence, the probability of selecting a three and then selecting a five is 0.6%
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Solve 5ax + 3ax = 4ax + 12 for x. Assume a ≠ 0
Answer: It might be x=1/a but I could be wrong
The value of the x is 3/a.
What is an Algebraic Equation?It states that the statement of the equality of two expressions formulated by applying to a collection of variables the algebraic operations.The solution of an algebraic equation is that the process of finding variety or set of numbers that, if substituted for the variables within the equation, reduce it to an identity.Given: Algebraic Equation
5ax + 3ax = 4ax + 12
we have to solve for the value of x.
⇒ 5ax + 3ax = 4ax + 12
⇒ 8ax = 4ax + 12
⇒ 4ax = 12
⇒ ax = 3
⇒ x = 3/a (a ≠ 0)
Therefore, the value of x for the given algebraic equation is 3/a.
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