Posted by Tperry on Thursday, February 21, 2013 at 3:55pm.
A college student decides that school work limits him to a total of no more than 36
hours per week at his two parttime jobs. He earns $6 per hour hanging wall paper and
he has a sales job that pays $8 per hour. He needs to earn at least $245 per week to
cover his expenses. Write a system of inequalities that shows the various numbers of
hours he can work at each job. Let h represent the number of hours spent hanging wall
paper and let s represent the number of hours spent working at the sales job.

Math  JJ, Thursday, February 21, 2013 at 3:58pm
hours: h + s < or equal to 36
6h + 8s > or equal to 245
You can solve these just like you would equations.
How would you solve h + s = 36
6h + 8s = 245
Multiply the first equation by 6 and then combine the equations to eliminate the x and solve for y. Substitute back in to solve for x.
then go back to the original inequalities to find the various numbers houwer worked

Math  Tperry, Thursday, February 21, 2013 at 4:00pm
well you would isolate y and i got s< or equal to h+36

Math  JJ, Thursday, February 21, 2013 at 4:04pm
I meant to say s and h.
You could do that which issubstitution or you could use the addition/elimination method
6h 6s <= 216
6h +8s >= 245
2s =461
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