In $3$ hours they are $288$ miles apart. Find the rate of both cars. I get wrong answer and can't figure out why.
Isn't $\frac{288}{3}=96$ the rate of the first car and $96+10= 106$ the rate of the second car?
Why do I have to do this $3(x+10)+3x=288$? Please help!
$d_1 = 3 \cdot v$
$d_2 = 3 \cdot (v + 10)$
$d_1 + d_2 = 288 = 6 \cdot v + 30$
So $v = 43$ (and $53$)