10/10/20111.) Your quiz grades are 78, 83, 84, and 72. What is the lowest grade you can obtain on the last quiz and still achieve an average of at least 80?
Inequality _______________________________
2.) Armando and Drew do volunteer work at an animal shelter. Drew worked 5 more hours than Armando, and together they worked more than 32 hours. What is the least number of hours each worked?
Inequality _______________________________
3.) -8(x – 2) < -10(2x – 2)
10/14/2011
1.) Your quiz grades are 85, 64, and 62. What is the lowest grade you can obtain on the last quiz and still achieve an average of at least 75?
Inequality _______________________________
2.) Armando and Drew do volunteer work at an animal shelter. Drew worked 6 more hours than Armando, and together they worked more than 40 hours. What is the least number of hours each worked?
Inequality _____________________________
3.) -5(x – 7) < -4(2x – 2)
4.) 19 – 7y - 3y < 39
5.) Mrs. Hays has promised her two teenagers that they may go to a concert if together they save more than $45.00 of their spending money. The older teenager agrees to save twice as much as the younger. How much must each save?
6.) 25 – 5y < 4y + 52