60 minutes in 1 hr, 60 seconds in 1 minute....(60 * 60) = 3600 seconds in 1 hr
(1/4) / 36 = x / 3600...1/4 mile to 36 seconds = x miles to 3600 seconds
cross multiply
(36)(x) = (1/4)(3600)
36x = 900
x = 900/36
x = 25 mph <==
we know it burns 3/4 of an inch in 1 hour, how about in 4 hours?
3/4 + 3/4 + 3/4 + 3/4, or simply.......
so in 4 hours it has burned out 3 inches, it was originally 8 inches, 8 - 3 = 5.
Answer:
B. x = 8
Step-by-step explanation:
3 I think it would be the third answer on that paper
Divide the numerator and denominator of the rate you are given by the denominator of the rate you have.