Register
Y and x have a proportional relationship, and y = 25 when x = 60. What is the value of x when y = 30? a.25 b.36 c.50 d.72
179k views
3 votes
Y and x have a proportional relationship, and y = 25 when x = 60. What is the value of x when y = 30?

a.25
b.36
c.50
d.72

User Chandre Gowda
by
7.9k points

2 Answers

4 votes

Answer:

x= 72

Explanation:

I have a answer book.

User Valentin Garreau
by
7.8k points
1 vote
the equation governiong this relationship is y = kx. Since y = 25 when x = 60,
25 = 60k, and k=(5/12). Thus, the equation is y = (5/12)x.

If y = 30, then 30 = (5/12)x. Mult. both sides by 12/5 to obtain the value of x:

(12/5)(30) = 360/5 = 72
User Logan Shire
by
8.7k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.1m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!