Solve the following equation:

Question

4/7 x = -16
A)x = 42
B)x = -28
C)x = 23
D)x = -24

Solve the following equation.
4s+13+s=2s+40-6
A)s = 12
B)s = -10
C)s = no solution
D)s = 7

You train for the Olympics 120 minutes each day. How many days have you trained when you have jogged 1080 minutes?

a.11 days
b.12 days
c.5 days
d.9 days

Answer 1

( 4 / 7 ) x = - 16 Multiply both sides by 7

4 x = - 16 * 7

4 x = - 112 Divide both sides by 4

x = - 112 / 4 = - 28

Answer B

4 s + 13 + s = 2 s + 40 - 6

5 s + 13 = 2 s + 34 Subtract 2 s to both sides

5 s + 13 - 2 s = 2 s + 34 - 2 s

3 s + 13 = 34 Subtract 13 to both sides

3 s + 13 - 13 = 34 - 13

3 s = 21 Divide both sides by 3

s = 21 / 3 = 7

Answer D

1080 / 120 minutes each day = 1080 / 120 = 9 days

Answer d