Answer:
11
Step-by-step explanation:
Answer:
-4
Step-by-step explanation:
if you switch it you get 12-16 and you have to get a negative so 16-12 is 4 so switch it to a nrgative to get -4
Answer:
6 hours
Step-by-step explanation:
The equation for this would be
c=3h+12
It costs $3 per hour, and there is a $12 cost no matter how many hours the bike is rented for
We know,c, or the cost is $30, so we can substitute that in
30=3h+12
Solve, by isolating the variable,h
First, subtract 12 on both sides
30=3h+12
18=3h
Divide by 3 on both sides
h=6
So, she rented the bike for 6 hours
You have to cross and multiply