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
3/4 x 6 = 18/4 = 4 1/2
she eats 4 1/2 bags of carrots in 6 weeks
Answer:
20 the answer is 20 because you plug in 4 for n.
Answer:
C
Step-by-step explanation:
C is the answer
a is the answer
b is the answer
D is the answer
