Answer:
x = -53/8
Step-by-step explanation:
6(2x + 7) = 5x - 11 - x
12x + 42 = 5x -11 - x (Distributive property)
12x + 42 = 4x - 11 (Subtraction property)
8x + 42 = -11 (Subtraction Property)
8x = -53 (Subtraction Property)
<u><em>x = -53/8</em></u>
Let x be the number of cars. We will find out how many cars you have to wash to make as much money as your friend:
10x - 25= 13x - 55 Add 25 on both sides and subtract 13x, also both sides:
3x = -30 Now divide both sides by -3:
x= 10 cars you have to wash.
This is a physics problem.
The law is that the momentum is preserved: total momentum before collsion = total momentum after collision
Momentum before collision = 80 kg.m/s - 100 kg.m/s = -20 kg.m/s
Then answer is b. - 20 kg.m/s
this is what i got when i divide 1. 66666666667 i am not sure please tell me if wrong for me to go over it with my tauter
