Question

Jodi went 54 miles on 3.5 gallons of gas, and she wants to know how far she can go on 9 gallons of gas. Which proportion would be useful to solve the problem?

A)
9
3
=
54
x
B)
9
54
=
x
3
C)
54
3.5
=
x
9
D)
54
9
=
3.5
x

Answer 1

80% of ____games is 32 games
sol'n: 0.80x = 32
x = 32/0.80
x = 40
Ans. 80% of 40 games is 32 games

75% of ____ peaches is 15 peaches
sol'n: 0.75x = 15
x = 15/0.75
x = 20
Ans: 75% of 20 peaches is 15 peaches

2 doctors is ____ % of 25 doctors
sol'n: 2 = 25x
x = 2/25
x = 0.08
Ans.: 2 doctors is 8 percent of 25 doctors

_____% of 200 miles is 150 miles
sol'n: 200x = 150
x = 150/200
x =0.75
Ans: 75% of 200 miles is 150 miles

60 minutes is 20% of ____ minutes
sol'n: 60 = 0.20x
60/0.20 = x
x = 300
Ans.: 60 minutes is 20% of 300 minutes

360 kilometers is 24% of ____ kilometers
sol'n: 360 = 0.24x
360/0.24 = x
x = 1500
Ans: 360 kilometers is 24% of 1500 kilometers

9 stores is 3% of ____ stores
sol'n: 9 = 0.03x
9/0.03 = x
x = 300
Ans.: 9 stores is 3% of 300 stores

Answer 2

54 (miles) / 3.5 (gallons) = x (miles) / 9 (gallons)

54/3.5 = x/9