Answer:
350 miles
Step-by-step explanation:
Let x represent the miles driven
The cost with the first plan will be represented by 0.40x + 70
The second plan will be represented by 0.60x
Set these 2 expressions equal to each other and solve for x:
0.40x + 70 = 0.60x
70 = 0.20x
350 = x
So, Susan will have to drive 350 miles for the cost to be the same
Step-by-step explanation:
If a+b=50
When b=30
a=50-b
a= 50 - 30
a=20
Therefore 20(a)+30(b)=50
Just square it normally then at the end put that number under a 1. So make 1 divded by ____
for example
3^-3=1/9