x 21
----- = -----
110 100
Cross multiplication:
110 x 21 / 100
= 23.1
About 23 of the pencils are blue.
1. You can subtract everything with the same “value” so that means you can subtract 3x from 6x, 5y - 5y and 39 - 27. This will give you: 3x + 0 = 12. Because 0 isn’t anything you get 3x = 12. Dividing everything by 3 you get x = 4
7% of $9,200 is $644. Add $800 + $644 to get $1,444
ANSWER:
$1,444
3 1/2
2 1/4+ 1 1/4 = 3 2/4
or 3 1/2
