Question

Write a proportion for the phrase and solve it:

9 pounds for $5.85; 20 pounds for d dollars

Answer 1

Proportion:

`(5.85)/(9)= (d)/(20)`


`d = (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