If y varies directly with the square of x and y = 4.3 when x = 5, what is the value of y when x = 6?

A) 0.2

B) 3.0

C) 5.2

D) 6.2

E) 209.3

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Tag: proportions

If y varies directly with the square of x and y = 4.3 when x = 5, what is the value of y when x = 6?

A) 0.2

B) 3.0

C) 5.2

D) 6.2

E) 209.3

if y is inversely proportional to x and y = 41 when x = 10, what is the value of y when x =7?

Test 3 Section 4 #26

The table above lists the results of a survey of a random sample of 250 high school seniors and freshmen. Each student selected one subject that was his or her favorite.If the sample is representative of a high school with 2,000 freshmen and seniors, then based on the table, what is the predicted number of freshmen at the high school who would select math as their favorite high school subject? A) 520 B) 240 C) 65 D) 30

The volume of water in a small pool is directly proportional to the depth of water. When there are 10 cubic feet of water in the pool, the depth of the water is 5 inches. How many cubic feet of water are in the pool when the depth of the water is 2 feet?

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