1. The first step is Distribution, a = 10a - 14. You can determine this by multiplying 2 into (5a - 7). 2*5a =10a, while 2*- 7 = - 14. Resulting in, a = 10a - 14.
2 . Now, subtract 10a on both sides, meaning 10a - 10a and a - 10a. The equation simplified is - 9a = - 14.
3. Divide by - 9 on both sides. The solution to the equation is a = 14/9
For the 3 days he ran a total of : 3 * 900 = 2700 meters.
1000 meters = 1 kilometers
2700 meters = 2700 / 1000 = 2.7 kilometers.
Between last week and this week, Bill ran a total of 6 kilometers.
How far he ran this week = 6 - 2.7 = 3.3 kilometers.
Option C.
Answer:
2r+12c
Step-by-step explanation:
V =πr^2h
v= 3.14×27×27×15
v=34335.9
v= 34336