Word problem for dealing with systems of linear inequalities

• Oct 29th 2008, 04:31 PM
runner940
Word problem for dealing with systems of linear inequalities
Please help me by checking to see if I set this word problem up right. . .

Problem: You can work at most 20 hours next week. You need to earn at least \$92 to cover your weekly expenses. Your dog-walking job pays \$7.50 per hour and your job as a car wash attendant pays \$6 per hour. Write a system of linear inequalities to model the situation.

I got 20 > x + y and 92 < 7.5X + 6y

Is this correct?
• Oct 29th 2008, 09:04 PM
kathrynmath
Quote:

Originally Posted by runner940
Please help me by checking to see if I set this word problem up right. . .

Problem: You can work at most 20 hours next week. You need to earn at least \$92 to cover your weekly expenses. Your dog-walking job pays \$7.50 per hour and your job as a car wash attendant pays \$6 per hour. Write a system of linear inequalities to model the situation.

I got 20 > x + y and 92 < 7.5X + 6y

Is this correct?

yes