Answer:
Step-by-step explanation:
Distribute the -5 to x and -1
-5x+5=2x+15
Subtract 5 from 15
-5x= 2x +10
Subtract 2x away from -5x
7x= 10
Divide
X= - 1.428571429
Answer:
a. 80.25
b. 104
Step-by-step explanation:
For (a), you add all the numbers together and divide by 4 because there are 4 test scores.
87 + 92 + 63 + 79 ÷ 5 = 80.25
For (b), we need to set up an equation. It is going to be a similar concept.
87 + 92 + 63 + 79 + x ÷ 5 = 85
x = 104
Hope this helps!
Answer:
Im sorry but I have no clue
<em>L</em>(-_-)7 (T-T)
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
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