Question

20 ounces at $7

17 ounces at x dollars

225 bushels for 3 acres
x bushels for 9.6 acres

Answer 1

9514 1404 393

Answer:

• $5.95
• 720 bu

Explanation:

We assume the given ratios are proportional. I find it easiest to write the proportion with the unknown in the numerator.

a) dollars/ounces = x/17 = 7/20

Multiply by the inverse of the coefficient of x to solve.

x = 17(7/20) = 5.95 . . . dollars

__

b) bushels/acres = x/9.6 = 225/3

x = 9.6(225/3) = 720 . . . bushels