Help please!! Kersha has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. Her office job pays her $12.00 per hour. Her cashier job pays her $8.25 per hour. In one week Kersha worked 55 hours. She earned a total of $585.

How many hours did Kersha work in each job?

Question

Help please!! Kersha has two jobs. During the day she works as an office clerk, and in the evening she works as a cashier. Her office job pays her $12.00 per hour. Her cashier job pays her $8.25 per hour. In one week Kersha worked 55 hours. She earned a total of $585.

How many hours did Kersha work in each job?

anonymous · Answer

alright to find this type of problem you have to have a formula. pick two variables for the two jobs to represent the hours worked in each/

anonymous · Answer

ok

anonymous · Answer

let me know what you pick.

anonymous · Answer

Well this was my answer. i wasnt sure if i was correct.

The correct equation is 12c + 8.25(55 - c) = 585

anonymous · Answer

gee im dumb.this was foranother problem maybe thats why i wouldnt get it

anonymous · Answer

well what i meant to say was 
 35 hours clerk, 20 hours cashier.

anonymous · Answer

Okay, look: your person works x hours in job one and z hours in job 2. job 1 earns $12/h. job two earns $8.50/h. correct? and she worked for 55 hours total. and earned $585

anonymous · Answer

yes

anonymous · Answer

Well, if you want to check if thats the right answer, play Plug N Chug.
Your equation is 12x + 8.50z = 585
so plug in 35 for x and 20 for z.
I hope this helped, i gotta go now.

anonymous · Answer

alright thanks!

wolf1728 · Answer

you'll need a second equation to avoid a trial and error solution.
Here is your second equation:
x + z = 55