SOLUTION: the cost of renting a carpet cleaner is $25 for the first 4 hours and $5 for each additional hour. What was the total lenght of time the cleaner was rented if the cost of the rent

Question 79436: the cost of renting a carpet cleaner is $25 for the first 4 hours and $5 for each additional hour. What was the total lenght of time the cleaner was rented if the cost of the rental was $45? How can I write this as an equation I think the answer is 8 hours but i don't know how to write it as an equation

same as above write the equation
eight times the sum of a numberand 2 is 10 times that number. What is the number?
I don't have a clue on this one!

Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
25+5*H=45
5H=45-25
5H=20
H=20/5
H=4 HOURS AFTER THE ORIGINAL 4. THUS THE TOTAL IS 4+4=8 HOURS FOR THE WHOLE JOB.
--------------------------------------------------------------------------------
8(N+2)=10N
8N+16=10N
-2N=-16
N=-16/-2
X=8 ANSWER FOR THE NUMBER.
PROOF
8(8+2)=10*8
8*10=10*8
80=80
RELATED QUESTIONS
The cost of renting a carpet cleaner varies directly with the hours rented. If the... (answered by rfer)

This 3 problems are related...I need solution and explanation: i. John is the owner of (answered by rothauserc)

The cost of renting a kayak is $12 for the first hour plus another $5 for each additional (answered by stanbon,josgarithmetic)

the cost of renting a truck is $39.99 for the first hour and $19.99 for each additional... (answered by rfer,stanbon)

The cost to rent a computer is Php 10.00 for the first hour or less plus Php 3.00 per... (answered by ikleyn)

Suppose a car rental company charges $110 for the first day and $60 for each additional... (answered by Boreal)

A bike rental company charges $10 to rent a bike plus $2 for each hour the bike is... (answered by MathLover1)

The cost in dollars, C, of renting a carpet cleaner is given by the linear equation C... (answered by josgarithmetic)

Write and evaluate an expression for the total cost of renting a machine for 5 hours if... (answered by Tatiana_Stebko)