Gre Math Flashcards
0
Q
Movie theater charges £6 per ticket and costs £1,750 per movie. How many people must see a movie so that the theater makes £1 profit per person
A
C=6c–1750
-5c=-1750
C=350
1
Q
Pens cost 70 cents each. Pencils cost 40 cents each. Jakob spent £5.20. 10 pens and pencils, how many pencils did he buy?
A
Number of pencils = x Number of pens = x-10 70(10-x) + 40x = 520 700-70x+40x=520 x=6
2
Q
Aspect ratio is width:height
16:9 and perimeter of 100. How many inches wide is the monitor?
A
Width = 16m Height= 8m Perimeter of rectangle = 2(l+w) 100=2(16m+8m) 100=50m M=2 16m= 32