Answer:
93
Step-by-step explanation:
Setup an equation. Add the 5 tests together, the unknown test will be represented by x, Since there are 5 tests total, you will divide by 5. to find the average.

To solve first multiply both side by 5.


Add the left side and then solve for x

Subtract 357 from both sides
357 - 357 + x = 450 - 357
x = 93
The last test has to be a score of 93 to get an average of 90.
Total slack is calculated by the late finish minus early finish and the late start minus the early start
<h3>What is the total slack?</h3>
Total slack is simply the amount of time taken for a task to be delayed before the project finish date is delayed. It can be positive or negative.
It is calculated as the calculated as the value of the Late Finish minus the Early Finish field, and the Late Start minus the Early Start field.
Total slack = Late finish - early finish + late start - early start
Thus, the total slack is calculated by the late finish minus early finish and the late start minus the early start.
Learn more about slack time here:
brainly.com/question/13278483
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First get the same denominator 2/5=4/10 so from here do 7/10-4/10 the denominator stays the same and the numerator changes, 3/10 is the answer so Heather live 3/10 of a mile closer to the library than the school
Answer:
x=5
Step-by-step explanation:
four times two x gives you 8x. 4 times 4 is 16. Subtract 16 from both sides you get 40. divide 8x by 8 and the eights cancel out. Divide 40 by 8 and you get 5
The vertex is (12,-9). Hope this helps.