4(17-n)=84, 17-n means the difference between 17 and a number multi that by 4 so the answer is 4(17-n)=84
Answer:
C. 210 miles.
Step-by-step explanation:
If Car 1 left 30 minutes earlier
than Car 2 therefore Car 2 traveled 3 hours
compared to Car 1's 3.5 hours
Car 1 traveled 3.5 x 42 mph = 147 miles
Car 2 travelled 3 x 50 mph = 150 miles
The distance between them would be
√147^2 + 150^2
= 210
3t − 1/4 = 7/8
Add 1/4 to both sides.
3t + −1/4 + 1/4 = 7/8 + 1/4
3t = 9/8
Divide both sides by 3.
3t/3 = 98/3
t=3/8
Answer:
It should be b. The difference between 17 and twice a number :)
