Answer:
2n - 4
Step-by-step explanation:
expand brackets
8n - 4 - 6n
collect like terms
2n - 4
I do believe the answers in a row are A: x, B: 40, C: 12, D:y
Given:
speed = distance / time
walking: 3 miles per hour
running 5 miles per hour
for a total of 3 hours.
3t = 5(3-t)
3t = 15 - 5t
3t + 5t = 15
8t = 15
t = 15/8
t = 1 7/8
7/8 * 60 mins = 52.50 minutes
t = 1 hour and 52.5 minutes
It took Stu 1 hour and 52.5 minutes to hike the trail one way.
Answer:
by dividing 6,400 by 2,000
Step-by-step explanation:
We know that 2000 pounds equals 1 ton
To convert 6400 pounds to tons, we need to
6400 pounds * 1 ton/2000 pounds
Divide 6400 by 2000
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