Answer:
10
Step-by-step explanation:

Answer:3.5 miles
Step-by-step explanation:
Answer:
Answers in explanations, hope they're correct!
Step-by-step explanation:
12. You will be using 0 gallons of gas when traveling 0 miles.
13. 20 gallons
14. (2,6)
15. You will package 15 dozens of cupcakes after 5 hours
Answer:
2.8 hours
Step-by-step explanation:
Distance = rate * time
If the west-bound train travels at a rate of 80 mph for t hours, then the distance it travels is 80t.
If the east-bound train travels at a rate of 90 mph for t hours, then the distance it travels is 90t.
The distance between the trains after t hours is 476; therefore, the distance of the west-bound train plus the distance of the east-bound train equals the total distance between them, 476:
80t + 90t = 476 and
170t = 476 so
t = 2.8 hours