Kevin ate 3/4 of a hamburger in 1/3 of an hour what is his rate per hour

2 1/4 hamburgers per hour

Step-by-step explanation:

1/3 of an hour equals 20 minutes

r = rate per hour

(20 min ÷ 3/4) = (60 min ÷ r)

cross-multiply to get:

3/4 · 60 = 20r

45 = 20r

r = 45/20 or 9/4 which is 2 1/4

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.