Question

Write a proportion for the phrase and solve it:
9 pounds for $5.85; 20 pounds for d dollars

Answer 1

Proportion:
$\frac{5.85}{9}= \frac{d}{20}$

$d = \frac{5.85*20}{9} =$ $13.00

Answer 2

9:5.85=9/5.85
equal to
20/d

9/5.85=20/d
multiply both sides by d
9d/5.85=20
multiply both sides by 5.85
9d=117
divie both sides yb 9
d=13

13 dolars