Which ratio is equivalent to the unit rate
30 miles
1 gallon
? How was the unit rate transformed into the equivalent ratio?
A)
3 gallons
10 miles
; by dividing the numerator and denominator of the unit rate by 10.
B)
90 miles
5 gallons
; by multiplying the numerator and denominator of the unit rate by 3.
C)
6 gallons
180 miles
; by multiplying the numerator and denominator of the unit rate by 2.
D)
180 miles
6 gallons
; by multiplying the numerator and denominator of the unit rate by 6.






A computer programmer worked 12 hours and earned $510. What is the hourly rate?
A)
$42.50
1 hour
B)
$47.25
1 hour
C)
$50.00
1 hour
D)
$41.25
1 hour






A furniture factory can box a desk chair in 15 seconds. What is the rate per minute?
A) 2 chairs per minute
B) 3 chairs per minute
C) 4 chairs per minute
D) 5 chairs per minute