Car A: 3x + 6
Car B: 4x+8
Step-by-step explanation:
total: 7 (x+2)
Answer:
140 minutes
Step-by-step explanation:
After 28 mins you've gone 4 miles, assuming this rate is constant and you dont slow down or speed up, in order to get to 20 miles you will have run 5x as much (20/4 = 5), thus 5x the amount of time (28x5).
20/4 = 5
5x28 = 140
Answer:
720
Step-by-step explanation:
hope it helps
Answer:
Step-by-step explanation:
let the number is x
3x+4=-8
3x=-8-4
3x=-12
x=-4
Answer:
it b
Step-by-step explanation:
