Suppose y varies directly with x and y =75 when x = 6. What is the value of y when x = 5?

62.5

Step-by-step explanation:

y∞x

y=kx( where k is the constant)

75=6k

75÷6 =k

12.5=k

therefore the relationship between k,x and y is y=12.5x

y=12.5×5

y=62.5

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.