1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anygoal [31]
1 year ago
15

If y varies directly with x and y is 37.4 when x is 17, what is the value of x when y is 13.2?

Mathematics
1 answer:
borishaifa [10]1 year ago
8 0

Answer:

6

Step-by-step explanation:

We have y ∝ x which is another way of saying y varies directly with x

We can rewrite the direct proportion relation y ∝ x as y = k.x where k is a constant - the constant of proportionality

So y = kx or x = y/k

using y and x values know, we can solve for k and then solve for any x given y

We have

y = 37.4 =  k (17)

Therefore k = (37.4/17) = 2.2

To find x given y = 13.2, use the second equation
x = y/k = 13.2 / 2.2 =  6

You might be interested in
Find 50% of 108:<br> Find 25% of 108:<br> Find 75% of 108:
laiz [17]

Answer:

50% of 108: 54

25% of 108: 27

75% of 108:  81

Step-by-step explanation:

Hope this helps have a nice day

5 0
2 years ago
Read 2 more answers
Can someone answer these 2 questions please?
aivan3 [116]
I think for number 3, it is the third option.
7 0
3 years ago
What is the standard form of x/4 - y/3 =1 and 5/x - 2/y=7.
kompoz [17]
You can multiply both sides by a number that will get rid of the denominators. For ex. you can multiply the first equation by 12 because 4 and 3 both go into 12 evenly. MAKE SURE YOU MULTIPLY THE OTHER SIDE BY 12 AS WELL! Therefore, 12(x/4) - 12(y/3) = 12(1), or 3x - 4y = 12
5 0
3 years ago
The perimeter of a parallelogram is 72 meters.The width of the parallelogram is four meters less than its length. Find the lengt
Naya [18.7K]
Parallelogram have 4 sides.

Use the distributive property. 2 multiply the last and negative 4 in the parentheses.
2l + 2(l - 4) = 72 m

Combine Like terms
2l + 2l - 8 = 72 m
4l - 8 = 72 m
Get l all by itself by adding 8 to both sides
4l - 8 = 72 m
+8. +8

Divide both sides by 4
4l = 80
4. 4

l= 20

The width of the parallelogram is four meters less than its length.

4 sides
2 length = 20
2 width = 16

I got 16 by subtracting 4 from 20

Comment if you need any other help :)
4 0
3 years ago
. Reason Rachel spent $36.32 in the grocery store. She paid the exact amount and used exactly 4 bills and 4 coins. What bills an
Margarita [4]

Answer:

She used a 20, 10, 5, and 1, she also used a quarter, nickel, and 2 pennies

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Write the name of the period that has the digits 913
    5·1 answer
  • Find the radius of a right cylinder with a volume of 350 cubic feet and a height of 4 feet. Round your answer to the nearest hun
    6·1 answer
  • A box has sides with these measures: length 10 cm, width 8 cm, height h cm. If the volume is 400 cm3 , find the measure of the h
    10·2 answers
  • The base of a triangle is x cm and its height is (x-7) Write down the expression of the triangle
    11·2 answers
  • Can u guys please identify the types of these triangles ( question 13)
    13·2 answers
  • 1. What is the area of the wall?
    7·1 answer
  • A restaurant surveys customers with the following results: 8 pizzas, 12 hamburgers, 14 pastas, and 6 steaks. What is the experim
    7·1 answer
  • In how many ways can you arrange six trophies on a shelf?
    12·1 answer
  • 8579 = 20.5% of x<br> What is x
    15·1 answer
  • Compare the ratios using the models.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!