PLEASE HELP
Can someone please help, my teacher wants this done a certain way and I don't know how to do it.
Gina is hiking from the top of a mountain. In 24 minutes, she walks down the mountainside to a location 1,524 feet from the top of the mountain. If she walks at about the same pace, express Gina’s average change in altitude per minute.
Answer:
The change in altitude per minute is 63.5 alt/ min
What is unitary method?
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given:
In 24 minutes = 1524 feet
So, the average Change in altitude per minute
=1524/24
= 63.5 alt/ min
hence, change in altitude per minute is 63.5 alt/ min.
pls solve\(\sqrt[3]{343}\)
Answer:
\(\sqrt[3]{343}=\sqrt[3]{7^3} =\bf\red{7}\)
After y – 4x = 12 is put in slope-intercept form, what is the slope?
-4
1/4
-3
4
Answer:
Slope is 4.
Step-by-step explanation:
The slope-intercept form is y=mx+b
We have to move the -4x over to create a slope-intercept equation.
∴ y=4x+12
Since m=4, the slope would be 4.
Answer: 4
Step-by-step explanation:
First, you have to arrange the equation in the correct way so that you will be able to get the slope. when -4x is shifted to the other side in order to make y the subject -4x will become +4x, so then it is obvious that the slope is 4! yay!
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Giving brainliest to right answer!
Answer:
D) 8.874
Step-by-step explanation:
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
Learn more about functions at: https://brainly.com/question/25638609
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The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
To know more about functions and points:
https://brainly.com/question/30721594
ANSWER ALL QUESTIONS
30 POINTS
Answer:13
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
2+2+2=66+5=11the answer is 11HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143
There are 35 kids in our math class. 80% of the kids have a pet. How many students in our class have a pet?
Answer this question please and thank you
Answer:
7/8 to the 7th power
Step-by-step explanation:
A school held a jump roping contest, Diego jumped rope for 20 minutes . Jada jumped rope for 15 minutes. What percentage of Diego's time is that?
Kelly's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 4 single-shot espressos and 6 double-shot espressos. What percentage of the espressos sold were single-shot?
Answer:
40% of espresso was single-shot.
Step-by-step explanation:
To make a percentage, you need to think of a fraction first. The denominator is always 100 in a percent. If my answer is 40%, the fraction would be 40/100. If there was 6 double shots and 4 single shots, those two together would make 10. 10 x 10 is 100. So really, you just have to multiply 4 by 10 to get the percentage.
Hope this helped, if your confused, just ask me :]
-Nific 0.9
PLEASE HELP. I will give BRAINLIEST.
Stanley has two sets of three cards face down on a table. Each set contains: the 2 of hearts, the 5 of diamonds, and the 8 of clubs. He randomly turns over one card from each set.
Find the probability of each event:
a) Both cards are red.
b) The first card is red and the second card is black.
c) Both cards are even numbers.
d) The sum of the numbers is greater than 8.
Which strategy did you use each time?
Please explain your work.`
Answer:
a =4/9 = Both cards red
b =2/9 = 1st red 2nd black
c =8/12 = 2/3 simplified even numbers
d= 8/12 = 2/3 simplified sum adds to 8
Step-by-step explanation:
a) Both cards are red see b) 2/3 x 2/3 = 4/9
Answer 4/9
b) One of each colour red selected 1st then black
Answer = 2/3 x 1/3 = 2/9
Answer = 2/9
b) workings
(P2)Any colour RED
(P2)= S1: ( 2/3, 2/3, 1/3)
(P2) = S2: (2/3, 2/3, 1/3)
RED = 1 x 2/3 x 1/3 = 2/9 first card and second card BLACK= 1 x 1/3 = 1/3
Final = 2/9 x 1/3 = 2/9
Answer = 2/3 x 1/3 = 2/9
c)
(P3) Even numbers
(P3)= S1: ( 2/3, 1/3, 2/3)
(P3) = S2: (2/3, 1/3, 2/3)
12 events 7 outcomes see chart below as two even numbers added will always be even numbers and so will two odds including 5+5 = 10
Answer = 8/12
d)
(P4 ) Numbers that multiply to greater than 8
2 + 2 = 4
2 + 2 = 4
2 + 5 = 7
2 + 8 = 10
5 + 5 = 10
5 + 5 = 10
5 + 2 = 7
5+ 8 = 13
8 + 8 = 16
8 + 8 = 16
8 + 2 = 10
8 + 5 = 13
= 12 events either card and 8 opportunities
Answer = 8/12 simplified = 2/3
Find the distance between the pair of points on the coordinate plane. Round to the nearest tenth of necessary. (-4,-3 and 2,1)
Answer:
Step-by-step explanation:
distance is 1.41421
haven't rounded
taylor is stumped because the double number line indicates that 1.25 lemonades cost $1 but they wat to know the cost of 1 lemonade. what should riley add to the double number line to help taylor
Answer:
1 cup = $0.8
Step-by-step explanation:
$1 = 1.25 cups
$2 = 2.5 cups
$3 = 3.75 cups
$4 = 5 cups
4/5 = 0.8
Part I: Making the Race
Henri is Emile's younger brother and they are having a walking race. Emile can walk 2.5 meters per second whereas Henri walks 1 meter per second. Because Emile is faster, they give Henri a 45 meter head start. Emile knows Henri would enjoy winning the race, but they do not want to make the race so short that it is obvious Emile let Henri win.
1. How long should the race be so that Henri will win in a close race?
2. Describe or show your strategy on how you came up with your answer for #1.
Answer:
Step-by-step explanation:
To make the race close, the length of the race should be 450 meters.
Here's the reasoning behind the answer:
Let's first calculate how long it would take for Emile to catch up to Henri, assuming Henri starts 45 meters ahead.
The time it takes Emile to cover the same 45-meter distance is 45/2.5 = 18 seconds.
During this time, Henri would have walked a distance of 1 x 18 = 18 meters.
So, after 18 seconds, Emile will have caught up to Henri and will be 27 meters ahead of him (45 - 18 = 27).
To make the race close, we want Henri to finish just a split second before Emile. So, we can assume that Henri will finish the race just as Emile catches up to him.
Let's call the total distance of the race "d."
So, Henri will walk d meters, while Emile will walk d + 27 meters (the 27 meters is the distance Emile has to walk after catching up to Henri).
We can set up an equation to solve for d:
d/1 = (d + 27)/2.5
Solving for d, we get:
d = 450
So, the race should be 450 meters long for Henri to win in a close race.
Please state your answer and explain clearly how you got to your answer. Please clarify and be specific. Thank you so much for you help!
Answer:
D. 1200 gallons
Step-by-step explanation:
Fractions of the total are given, as is the quantity the difference of those fractions represents. These can be used to write an equation to find the total.
SetupLet g represent the total number of gallons of fuel sold. Then the number of gallons of 87-octane sold is 0.50g, and the number of gallons of 89-octane sold is 0.35g. The difference is said to be 180 gallons:
0.50g -0.35g = 180
SolutionCollecting terms gives ...
0.15g = 180
Dividing by the coefficient of g, we find ...
g = 180/0.15 = 1200
The gas station sold 1200 gallons of fuel last weekend.
__
Additional comment
That's 600 gallons of 87-octane; 420 gallons of 89-octane; 120 gallons of 92-octane; and 60 gallons of 99-octane.
50 POINTS AND BRAINLIEST TO CORRECT ANSWER!!
Answer the following linear equations: x3+y3+z3=k
2x – y = 6, x – y = 2
and ax + by = a-b, bx – ay = a+b
TYVM!! :)
Answer:
Linear Equation 1 — 3xyz
Linear Equation 2 — x = 4 and y = 2
Linear Equation 3 — x = 1 and y = (-1)
Step-by-step explanation:
(Linear Equation 1)
The equation x3+y3+z3=k is known as the sum of cubes problem. While seemingly straightforward, the equation becomes exponentially difficult to solve when framed as a "Diophantine equation" -- a problem that stipulates that, for any value of k, the values for x, y, and z must each be whole numbers.
The required result must be 3xyz.
(Linear Equation 2)
2x − y = 6 ....(1)
x − y = 2 ....(2)
Equation(2)−Equation(1) we get
x − y − 2x + by = 2 − 6
(−x) = (−4)
x = 4
Substitute x = 4 in (1) we get
2x − y = 6
2*4 − y = 6
8 − y = 6
(−y) = 6 − 8
y=2
(Linear Equation 3)
ax + by = a − b .......... (1)
bx − ay = a + b .......... (2)
Multiply equation (1) with a and equation (2) with b ,
a²x + aby = a² − ab ..........(3)
b²x − aby = ab + b² ......... (4)
Adding (3) and (4), we get,
(a² + b²)x = a² + b²
x = 1
Now, from (1),
ax + by = a − b
a + by = a − b
by = (−b)
y = (−1)
Hope my answer helps you ✌️
Mark BRAINLIEST
15 points to whoever answers this!!
Answer:
\(\frac{16}{27}\)
Step-by-step explanation:
From the table, we notice that the total number of students is:
\(3+10+8+6=27\)
Then, along the second column of the table, we notice that the number of students who do not have a brother is:
\(10+6=16\)
So, the probability that a randomly chosen student does not have a brother is:
\(\frac{\text{number of students who do not have a brother}}{\text{total number of students}}=\frac{16}{27}\)
I WILL MARK AS BRAINLIEST! Solve
Answer:
a=1/2 b=1/2 c=3/8 d=1 . i think this is correct answers
Solve the inequality m-3 ≥ -2
Answer:
m ≥ 1
Step-by-step explanation:
Step 1: Isolate the variable. (Add 3 to both sides.)
m - 3 + 3 = -2 + 3
m ≥ 1
Answer: m ≥ 1
Step-by-step explanation:
Set up the equation
Add three to both sides
-3 + 3 = 0
-2 + 3 = 1
m ≥ 1
What is the domain and range of:
Answer:
b
Step-by-step explanation:
how it works with life
I have 60% on my iPad and my brother has 90% on his how much more percentage I need as a fraction.
Answer:
1/3
Step-by-step explanation:
just convert it?
3/10
Step-by-step explanation:
60% is the same as 60/100
90% is the same as 90/100
90-60=30
30/100
30/100 is divided by 10 on each side to simplify it to 3/10
a stack of 500 pieces of paper is 1.875 inches tall derion guesses that each piece of paper is 0.015 inches thick. explain how you know that derions answer is not correct.
compute the thickness of each piece of paper. show your reasoning
Answer:
Derions answer is not correct becuase 500 x 0.015=7.5 inches. If he got this as an answer that would meen that the stack of paper is 7.5 inches tall, which is not correct.
If we divide 1.875 by 500 we get 0.00375 which is the thickness of each sheet of paper.
15 points! Will mark brainliest for smartest answer.
Answer:
4.75b+3.50=15.00
Step-by-step explanation:
4.75b+3.50=15.00
4.75b=11.50
b=2.42
She can buy 2 bags of fruit
Answer:
The maximum bag of fruit she can buy is 2
Step-by-step explanation:
help me this one plssssssssssss
Answer:
The integer that describes the translation from B to B' is (-2,1)
pls you will the ultjimate rizz
Answer:
22 square units.
Step-by-step explanation:
What is the area?The area is the total space taken up by a flat (2-D) surface or shape. The area is always measured in square units.
To solve for the area of the figure, we can split the figure into 3 shapes. (2 triangles and a rectangle)
An expression you can use to solve for the area of a rectangle and the area of a triangle is:
(Length × width) = area of a rectangle.(Length × width) ÷ 2 = area of a triangle.Solving for the triangle on the left:
(4 × 3) ÷ 2 =?Solving what is in the parenthesis:
12 ÷ 2 = 6Therefore, the triangle on the left has an area of 6 square units.
To solve for the rectangle in the center, we can use this expression:
4 × 3 = 12Therefore, the area of the rectangle in the center is 12 square units.
Solving for the triangle on the right:
(4 × 2) ÷ 2 =?Solving what is in the parenthesis:
8 ÷ 2 = 4Therefore, the area of the triangle on the right is 4 square units.
Adding all of the areas together:
6 + 12 + 4 = 22Therefore, the total area of the shape is 22 square units.
(6 2/5 + 8 6/10) + 7 2/10
What is another way to write the expression using the Associative Property?
Answer:
"141/5"
Step-by-step explanation:
100% correct answer✓
100 points!
please help i dont know the math of how to do this 3
please dont just put anything to get the points if you dont know dont asnwer thank you!
also brainliest!!
Answer:
A) 23542
B) 2457
C) 40
D) 8
Step-by-step explanation: