85 x 3 = 255
first 2 test grades were 81 and 86:
81 + 86 = 167
Need to find the 3rd to have exact average 85:
255 - 167 = 88
So her 3rd test needs to make 88 to make average of 85
Double check: 81 + 86 + 88 = 255 = 85 + 85 + 85
Answer:
8
Step-by-step explanation:
56 ÷ 7 = 8
Answer:
The answer is 26
Step-by-step explanation:
Answer:
x z y is the awnser
Step-by-step explanation:
I'm doing this type of stuff
It would end up half a mile away from home