INTEGERS
(-5)*7
-35
There are 28 women and 21 men. What is the ratio of men to women? Simplify your answer.
Men : women = 21 : 28 = 3:4
40-5+2
37
24 + 88y
24/8 + 88y/8 = 8(3+11y)
2 + 4c - 2c - 5 + c
Combine like terms:
3c - 3
354/2
177
The ratio of boys to girls is 3 to 2. If there are 12 boys, how many girls are there?
3 boys/2 girls = 12 boys/ girls, 2*4= 8, There are 8 girls
5y+3
8
v / 8 = 2
v/8*8= 2*8 v=16
y + y + x + y
x + 4y
141+(-205)
-64
the ratio of doctors to lawyers is 5:4. If the total number of people in the group is 72, what is the number of lawyers in the group?
the number of doctors be 5x and the number of lawyers be 4x.
Then 5x+4x = 72 → x=8.
So the number of lawyers in the group is 4*8 = 32.
5-7+4*2
6
3h - 5 = 22
3h - 5+5 = 22 +5 3h/3=27/3 h=9
-x - 1 - x - 1
-2x - 2
-506-(-201)
-305
the ratio of chocolates to ice-cream cones in a box is 5:8 and the number of chocolates is 30, find the number of ice-cream cones.
Let the number of chocolates be 5x and the number of ice-cream cones be 8x.
5x = 30 → x = 6.
number of ice-cream cones in the box = 8*6 = 48.
5a-7y+9a
14a-7y
h / 4 + 1 = 9
h / 4 + 1-1 = 9-1 h/4*4=8 *4 h=32
Evaluate when x=10
100x + 5 - 5x + 5
960
16% of 744
119.04
In grade 5 class, there are 20 boys and 28 girls. What is the ratio of the numbers of girls to the number of boys?
The ratio of the numebr of girls to boys.
= 28 : 20
= 28 / 20
= 7 / 5
= 7 : 5
6s+82s
88s
2x + 8 = 16
2x - 8 + 8 =16 - 8 2x/2 = 8/2 x=4
4x^2 + 2x + 7 - 6x^2 + 3 - 5x
combine like terms:
4y^2 + 2x + 1y