your test grades are 85,74, and 91. What is the lowest grade you can get on the next test and have an average of at least 80
2 answers:
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ANSWER
10.0 ------- Vivian is correct
EXPLANATION
Firstly, find the cube root of 1010
In the above calculation, the cube root of 1010 is 10.003
The correct approximation of the above value is 10.0. This is because the hundredth value is not upto 5
Recall, figures from 1 - 4 are rounded to zero and figures from 5- 9 are rounded up to 1
since 3 is not upto 5, so it is rounded down to zero
Therefore, Vivian is correct