Answer:
George and Carmen traveled 185 kilometers by bike and 115 kilometers by bus
Step-by-step explanation:
<u><em>The question is</em></u>
Find how many kilometers they traveled by bike
Let
x ----> kilometers traveled by bike
y ----> kilometers traveled by bus
we know that
They traveled 300 kilometers in total
so
----> equation A
They biked 70 kilometers more than they were bus
so
----> equation B
substitute equation B in equation A

solve for y

<em>Find the value of x</em>

therefore
George and Carmen traveled 185 kilometers by bike and 115 kilometers by bus