The quantities x and y are proportional.

x y
12 36
18 54
25 75
Find the constant of proportionality (r)left parenthesis, r, right parenthesis in the equation y= r x
r= equals

Answers

Answer 1

Answer:3

Step-by-step explanation:

36/12=3

54/18=3

75/25=3


Related Questions

how do i do this? it doesn't make sense

Answers

Answer:

The answer is B. 581/90

Step-by-step explanation:

just divide 581 by 90 and you'll find that it is equivelent to 6.45

Hope that helps!

b you just have to divide the top by the bottom and see the answer

formula: Area of a parallelogram = base X height
I'm kind of confused.

Answers

I think in (a) it will be 12*7 = 84 cm^2
In (b) it will be 42:6= 7 so 7*6=42 cm
In (c) it will be 42,9:7,8= 5,5 so 7,8*55 = 42,9

Please help someone!

Taylor has a bag containing 15 counters. The table below shows the number of counters of each color in the bag. As a part of a probability experiment for science club, Taylor randomly picks a counter from the bag then replaces it. She repeats this 300 times.

Part A
Taylor randomly picks a counter out of the bag. What is the probability that it will be red?
Show your work and explain your answer.
Part B
Predict the number of times out of 300 Taylor will pick a red counter.

Answers

Answer:

part a. she has an 8 out of the 15 counters chance at getting red. part b. she has a chance of 262 times out of the 300 to get red

Step-by-step explanation:

i hope this helps and i'm sorry if it's wrong have a lovely day

The probability that it will be red is 8/15.

The number of times out of 300 Taylor will pick a red counter is 160.

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

We have,

Taylor has a bag containing 15 counters.

First, the probability that it will be red

= 8/15

Now, if she repeats 300 times then

= 8/15 x 300

= 8 x 20

= 160

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Question content area top
Part 1
Your class is selling boxes of flower seeds as a fundraiser. The total profit p depends on the amount x that your class charges for each box of seeds. The equation p= -0.5x²+25x-111 models the profit of the fundraiser.​ What's the smallest​ amount, in​ dollars, that you can charge and make a profit of at least ​$114​?

Answers

Answer:

12

Step-by-step explanation:

if we know we want a profit of at least 114, we need to solve for x.

if we put 12 for x we get the answer 117 and when we put 11 for x we get less than 114.

-0.5(12)^2 + 25(12)-111 = 117

Subtract the rational expression

Please show the steps to the answer

Answers

Answer:

[tex]\frac{x^2-8x-12}{2x^2+5x-4}[/tex]

1. Find common denominator (LCD)(x + 3)(2x - 1) =  [tex]2x^2 + 5x - 4[/tex]

2. Multiply bottom to get LCD, then multiply top to matchFirst term: [tex]\frac{x}{x+3} (\frac{2x -1}{2x-1} ) = \frac{2x^2-x}{2x^2+5x-4}[/tex]Second term: [tex]\frac{x+4}{2x-1} (\frac{x+3}{x+3} )=\frac{x^2+7x+12}{2x^2+5x-4}[/tex]Ending expression: [tex]\frac{2x^2-x}{2x^2+5x-4} -\frac{x^2+7x+12}{2x^2+5x-4}[/tex]

3. Rewrite terms in a single fraction[tex]\frac{2x^2-x}{2x^2+5x-4} -\frac{x^2+7x+12}{2x^2+5x-4}[/tex]  -----> [tex]\frac{(2x^2-x)-(x^2+7x+12)}{2x^2+5x-4}[/tex]

4. Subtract, then combine like termsFinal answer: [tex]\frac{x^2-8x-12}{2x^2+5x-4}[/tex]

i need help on this! ASAP

Answers

Answer:

-2

Step-by-step explanation:

Good luck! :)

Answer:

A. -2

Step-by-step explanation:

The square root of 256 is 16 and the square root of 324 is 18. 16 - 18 = -2

i need help on this i dont know how to do this

Answers

Answer:

D.4.375

Step-by-step explanation:

this is the answer

the answer is d 4.375

I need help FAST! i have tried

Answers

Answer:

B is the answers

because anything power 0=1

Step-by-step explanation:

please mark me as brainlest is

what is ten to the power of three times ten to the power of four divided by ten to the power of five?

Answers

The answer should be 100 ………

Answer:

The answer would be 100

I have done this around a month ago and got it right at my school

A car can travel 60 miles per hours.

A. Create a table showing house far the car travels in 5 hours.

B. Write an equation to determined the distance d that the car can travel in t hours.

C. How long will it take the car to travel 540 miles? Explain your reasoning.

D. How far will the car travel in 12 hours? Explain your reasoning​

Answers

Answer:

do 60 times 5 puls540 and 12

Step-by-step explanation:

i think i am wrong but i am right i think

The answer is B. Write it in equation to determine the distance D that the car can travel in T hours.

During science class, Jack, Jeff, and Jill measure the length of their bean sprouts. Jeff’s sprout is 0.9 times the length of Jack’s, and Jill’s is 1.08 times the length of Jack’s. Whose bean sprout is the longest?Why?

Answers

Answer:

Jill's is the longest.

if jeffs is 0.9 times the length of jacks, his is lesser than jacks. e.g. 2×0.9=1.8. Jeff's will always be shorter. since we know Jacks is over 1, Jill's will always be taller because 2×1.08=2.16 or Jill's length.

explain how the models in questions 4 and 5 are the same

Answers

Answer:

Hi!

So, for question 4, when you divide it by two, you can split it horizontally to make it 6 squares instead of 3 rectangles from the model of the 1/3, leaving 2 shaded squares and 4 unshaded squares. And since you're dividing it by 2, you only use 1 of the shaded squares.

For question 5, I made the one-half horizontal instead of vertical so you can easily overlap the 2 models when you multiply them. Similar to question 4, the model becomes 6 squares and the 2 models overlap on one square.

Hope this helps! :)

A x 1/2 = A/2

multiplying something by half is same as dividing it in 2 parts.

online note taking is weird please help

Answers

Answer:

25% off the entire purchase is better and will save you money over the 40% off

Step-by-step explanation:

I'll give brainliest

What is the volume of this object? Enter answer as a mixed number.

__u^3

Answers

Volume formula: length x height x width
2 1/2 x 2 1/2 x 5 = 31 1/4

Please Help!!!

How many solutions does this system have?
x + 2y - 3z = 4
2x – 4y + 62 = - 8
3x + 6y - 9z = 12

a. There are three solutions.
b. There is one solution.
c. There are an infinite number of solutions.
d. There is no solution.​

Answers

Answer:

The answer is d.

There is no solution. So D

What is the equation of the line in slope intercept form that has a slope of 1/2 and passes through (2,3)

Answers

Y=1/2x + 3

Hope this helps

Answer:

y = 1/2x + 2

*view the attached graph to double check the answer*

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

y = mx + b

y = 1/2x + b

(2, 3) ==> substitute the numbers into the equation

y = 1/2x + b

3 = 1/2(2) + b

3 = 1 + b

-1   -1

2 = b

Our final equation: y = 1/2x + 2

Check your answer using (2, 3):

y = 1/2x + 2

3 = 1/2(2) + 2

3 = 1 + 2

3 = 3

This statement is correct

Hope this helps!

can you guys help me on this

Answers

Answer: 1/4 OR 1/8

Step-by-step explanation:

the first coin can be heads which has a 1/2 chance of happening and the other coin also has a chance to get tails which is 1/2

if you add the 1/2 and the other 1/2 you can get 1/4 OR 1/8

Answer:

1/4

Step-by-step explanation:

1/2x1/2

half of one half can be achieved by doubling the denominator

1/4

Find the value of a and b so that f(x)=(x-5)(a㏒ₓ3-b)

Answers

Answer: :-p(x) = x⁴ - ax³ -3x² + 2x + bWe have to find the values of "a" and "b"Given :-(x+1) and (x-1)

Felix and Julyssa are computing 3 + 4 x 4. Feliz says the answer is 28. Julyssa says the answer is 19. Who is right? Explain.

Answers

Answer: Julyssa is right

Step-by-step explanation: According to PEMDAS, multiplication goes first (before) addition so

3 + (4x4)

3 + 16

= 19

PEMDAS

PARENTHESES

EXPONENTS

MULTIPLICATION

DIVISION

ADDITION

SUBTRACTION

Julyssa is right.
We know this because in bidmas, multiplication comes first, so 4 x 4 is done first.
So 4 x 4 = 16
And 16 + 3 = 19

Nigel went to a sandwich shop for lunch. The menu below shows the types of cheeses and
meats available.
Cheeses Meat
American ham
cheddar. bologna
turkey
chicken

If Nigel chooses one cheese and one meat, how many different sandwiches are possible?

Answers

Answer:

2 sandwitches?

Step-by-step explanation:

This is because it said that he chose one cheese and one meat.

25 points! Will give brainliest to the most informative but simple answer
Solve [tex]\frac{-72}{x} = 9[/tex] using the distributive property.

Answers

x = -8

Step by Step:

1) -72/x = 9 first, you multiply both sides by x and get -72= 9 * x

2) -72= 9 * x second, you divide both sides by 9 to isolate x by itself -72/9 = 9 * x/ 9 (the 9 cancels on the right side of the equation leaving x by itself)

Leaving you answer to be x = -8

Answer:

The answer is

→ [tex]x=-8[/tex]

Step-by-step explanation:

Given: [tex]\frac{-72}{x} = 9[/tex]

Solve:

[tex]\frac{-72}{x} = 9[/tex]

Step 1: Multiply all terms by the same value to eliminate fraction denominators.

[tex]\frac{-72}{x} = 9[/tex]

⇒ [tex]x * \frac{-72}{x} = x * 9[/tex]

Step 2: Cancel multiplied terms that are in the denominator.

[tex]x * \frac{-72}{x} = x * 9[/tex]

⇒ [tex]-72 = x * 9[/tex]

Step 3: Re-order terms so constants are on the left.

[tex]-72 = x * 9[/tex]

⇒ [tex]-72 = 9x[/tex]

Step 4: Divide both sides by the same factor.

[tex]-72 = 9x[/tex]

⇒ [tex]\frac{-72}{9} = \frac{9x}{9}[/tex]

Step 5: Simplify.

Divide the numbers.

[tex]\frac{-72}{9} = \frac{9x}{9}[/tex]

⇒ [tex]-8 = \frac{9x}{9}[/tex]

Cancel terms that are in both the numerator and denominator.

[tex]-8 = \frac{9x}{9}[/tex]

⇒ [tex]-8 = x[/tex]

Move the variable to the left.

[tex]-8x = x[/tex]

⇒ [tex]x = -8[/tex]

Hence, [tex]x = -8[/tex] is your answer.

- ✨7272033Alt✨

What is the solution set of the inequality below?
A .y greater than negative 33
B. y less than 33
C. y less than negative 33
D .y greater than 33

Answers

Your answer is C

Step-by-step explanation:

Multiply -33 x 11

B. y less than 33 is the solution set .

A net of a square pyramid is shown below. 5.95 cm 5.1 cm What is the surface area, in square centimeters, of the pyramid.

Answers

Answer:

86.7

Step-by-step explanation:

L x W = 5.1 x 5.1 = 26.01
B x H ÷ 2 = 5.1 x 5.95÷2 = 15.1725
15.1725 x 4 = 60.69
60.69 + 26.01 = 86.7

The surface area of the  square pyramid is 92 square centimeters.

The given figure is a square pyramid.

We have to find the surface area.

Surface area = a² + 2a√(a²/4 + h²)

a is 5.1 cm and h is height which is 5.95 cm.

Surface area = 5.1² + 2(5.1)√(5.1²/4 + 5.95²)

=26.01 + 10.2 √(26.01 /4 +35.4025)

=26.01+10.2 √6.5025+35.4025

=26.01+10.2√41.905

=92 square centimeters.

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ILL GIVE BRAINLIEST TO THE CORRECT ANSER BUT ANSWER ASAP

Answers

Answer:

625 is the answer

Step-by-step explanation:

625!

help/tips: when there is an exponent (like the four) next to the number, that means you have to multiply the number (like the five) by itself as many times as the exponent says. so if it was the number 6, with the exponent of 3 you would multiply 6 by itself three times. (6x6x6)

PLEASE HELP ME!!!!!!

Answers

Answer:

e

Step-by-step explanation:

Question 1:

18 oz = ___ lb

18 oz = 1.125 lb = 1 1/8 = 1 2/16

Third answer

Question 2:

9 oz = ____ lb

9 oz = 0.5652 lb = 9/16 lb

There are 16 ounces in one pound.

Question 3:

13 in = ____ ft

13 in = 1 1/12 ft

There are 12 inches in one foot.

Question 4:

5 in = ____ ft

5 in = 5/12 ft

hope this helps :)

18. Classify Each Angle Pair then find the value of X

Answers

To find the value of x you set the equation for angels 2 and 7 equal to each other because they are the same value. Also they are both obtuse Angel because they are greater than 45 degrees.

Look at the screenshot

Answers

Answer:

A: 1.5

B: A = n/1.5

C: This means every bowl you make, you would need 1.5 pounds of clay.

Step-by-step explanation:

A: The constant of proportionality is otherwise known as the slope. The formula for the slope is [tex]y_{2}[/tex]-[tex]y_{1}[/tex] / [tex]x_{2}[/tex]-[tex]x_{1}[/tex] (rise over run.) Lets plug the values in.

4.5-0 = 4.5

3-0 = 3

4.5/3 =1.5

B:

A = n/1.5

C:

The point (1,1.5) is representing the x value, the number of bowls, and the y value, the amount of clay in pounds.

This means every bowl you make, you would need 1.5 pounds of clay.

Find the interquartile range (IQR) of your data. Show your work.

23, 75,79,99,105,110,110,142,149,168,168,170,183,195,202

Please help I don't understand!

Answers

Answer:

Interquartile Range =  71

Step-by-step explanation:

The interquartile range is the middle 50% of the data set. First you calculate the location of the 3rd quartile (75% of the data set) by computing:

LQ3 = (75/100)(n + 1) -> here n is the number of observations you have, so 15. You can now compute LQ3 = (75/100)(16) = 12

The data at location 12 of your data set is 170.

Now you compute the 1st quartile (25% of the data set):

LQ1 = (25/100)(16) = 4

The data at location 4 of your data set is 99.

The difference between the 3rd quartile (170) and the 1st quartile (99) is your interquartile range:

IQR = 170 - 99 = 71

According to this line plot, 3 players on this team each had 15 strikeouts for a total of 45 strikeouts. How many strikeouts did this team have in one season?

Answers

This team had 195 strike outs in one season

For each material listed in the table, find the mass for cm3 in grams and kilograms. Then find the weight in pounds.


ill give brainliest

Answers

Answer:

0.00003 and 0.03

Step-by-step explanation:

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