Question

A utility company charges $25 for basic
service plus $1 for every 100 kilowatts
of electricity used.
What would be the cost of service if you
used 400 kilowatts of electricity?

Answer 1

The cost would be $29

Why:


This could be put into the equation:
Y= 1x + 25

X= how many 100 kilowatts

Put in the value 400 as 4 since that is how many hundreds

Y= 1(4)+25

Y=29