A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have an average of 80?
73. 87, 85, 70

85%

Step-by-step explanation:

To find his average you add all his scores together and divide it by the number of scores there are. So 73+87+85+70+85=80, and that will be his average if he gets an 85% on his last test.

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step-by-step explanation:

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|