Question

Help with 8th-grade math

Answer 1

h=V/lw

Explanation:

1. Since your trying to get h by itself, divide both sides by lw.

2. You will know have lwh divided by lw and V divided by lw.

3. you cross out the lw next to the h because the division cancels it.

4. Now you have h=V/lw.

Answer 2

20.

60 + ( x + 20 ) + 3x = 180
80 + 4x = 180
-80. -80
4x = 100
X = 25
X + 20 = 45
3x = 75



21.
X - 5 + x + 35 + 1.4x + x = 360
4.4x + 30 = 360
. - 30. - 30
4.4x = 330
X = 75
X + 35 = 110
1.4x = 105
X - 5 = 70