Answer:
-24
Step-by-step explanation:
If there were 5 transactions, 5 times the mean amount of the transactions will add up -120. If "x" is the mean amount of the transactions:
5*x = -120
x = -120/5
x = -24
Answer:
35.
Step-by-step explanation:
Answer:
15%
Step-by-step explanation:
Percent is (usually) out of 100. So since the unit is already 100 you can just look at how much she did lose. (^-^)
Step-by-step explanation:
If x=3, y=7 when x+y=z
z=3+7
z=10
Answer:
x = 15
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
3-(x-12)=0
Solve : -x+15 = 0
Subtract 15 from both sides of the equation :
-x = -15
Multiply both sides of the equation by (-1) : x = 15
