Question

URGENT!!!!! PLEASE HELP ME!!!
Set up a proportion and solve. You are riding your bicycle. It takes you 28 min to go 8 mi. If you continue traveling at the same rate, how long will it take you to go 15 mi?
Set up a proportion and solve. A canary’s heart beats 130 times in 12 s. Use a proportion to find how many times its heart beats in 50 s.
Set up a proportion and solve. Your car averages 18 mi per gal on the highway. If gas costs $3.45 per gal, how much does it cost in dollars per mi to drive your car on the highway?

Answer 1

Hello!
For this kind of question,I prefer you get how many min does it take to go 1 mi.
You can divide 28 by 8 to get the min required for you to go to 1 mi.
After that you can multiply the answer by 15 to get the min required for you to go to 15 mi.

Solution:
28/8=3.5
3.5*15=52.5
Answer:
52.5 min.


Given: 18 miles / gal

$1.85 / gal

* The answer was rounded down from 0.0127777

(Picture for 2nd question is attached)