A. the sum of andre and brandon scores on a math quiz is 180. andres score is 2 times more than 30 less than brandon score. find each students quiz score.

b. solve the inequalities.
100x-200> 50x-75

A)

a+b=180 and a=2(b-30) using this in the first equation gives you:

2(b-30)+b=180

2b-60+b=180

3b-60=180

3b=240

b=80 so a=100

Andre's score was 100 and Brandon's score was 80.

b)

100x-200>50x-75  subtract 50x from both sides

50x-200>-75  add 200 to both sides

50x>125  divide both sides by 50

x>2.5

Move the decimal behind it