Question

The value of y is directly proportional to the value of x. If y = 45 when x =

180, what is the value of y when x = 80?

Answer 1

Explanation:

y=45 when x=180 that is x is higher than y

4of y will give you 1of x that 45×4= 180

so when x is 80 so y will be 80÷4 that is 20

so y= 20