Answer:
Step-by-step explanation:
wheres the examples....?
Answer:
22.2
Step-by-step explanation:
Answer:
46
Step-by-step explanation:
94-48
46
The answer to your question is 0.83
the average can be calculated by adding the scores together and then dividing by the number of scores.
we can set up an equation:
let x = test score needed on next test
(72+72+80+x)/4 = 71
multiply both sides by 4
72+72+80+x = 284
add like terms
224+x=284
subtract 224 from both sides
x=60
she will need a 60 for her average to be 71
