Sunday

April 20, 2014

April 20, 2014

Posted by **Izzy.** on Thursday, January 5, 2012 at 10:06pm.

- Math, I NEED HELP.c: -
**Izzy.**, Thursday, January 5, 2012 at 10:29pmD:

- Math, I NEED HELP.c: -
**Reiny**, Friday, January 6, 2012 at 9:06amequation:

cost = yt + x, where t is the number of hours

case1:

4y + x = 63 ---> x = 63-4y

case2:

6y + x = 87 ---> x = 87-6y

so 63-4y = 87-6y

2y = 24

y = 12

back into 1st equation:

x = 63-4(12) = 15

cost equation:

cost = 12t + 15

so for 11 hrs

cost = 12(11)+15

= 147

**Related Questions**

math - a car rental company charges a flat rate of $29 per day and an additional...

8TH GRADE MATH EXPRESSIONS - At a lake, there are 2 boat rental shops. Shop A ...

math - Video rental Store A charges a membership fee of $25 and $2 for each ...

math - need a linear equation for this problem: A car rental company charges a ...

Algebra - The XYZ Car Rental Agency charges a flat rate of $29 per day plus $.32...

Math - 2. A rental company charges a flat fee of $50 to rent a jet ski.In ...

algebra - Simone rented a truck to move to a new apartment last month. The ...

Honors Algebra - Hi, I need some help with my Algebra. This is how it goes: Yet ...

math - One car rental agency charges $20 per day plus $0.25 per mile. A ...

math - Trish wants to rent a camera for the weekend. One company charges flat ...