3a + b = 54...when b = 9
3a + 9 = 54
3a = 54 - 9
3a = 45
a = 45/3
a = 15 <===
Answer:
a) Junnie walked farther than Maurice
b) Junnie walked .62 miles farther than Maurice
Step-by-step explanation: Because speed times time equals distance, to find how far each person traveled you multiply their speed and time.
Distance=speed×time
Junnie:
2.5hrs×3.2mph=8 miles
Maurice:
1.8hrs×4.1mph=7.38 miles
8-7.38=.62 (the difference between the two)
15 16 and then 17 to be an equilateral
Answer:
the third one
Step-by-step explanation:
area of a circle vs. it's diameter