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Savatey [412]
3 years ago
10

to pass a course with an a grade a student must have an average of 90 or greater. a student's grade's on three tests are 83 91 a

nd 86. find what score the student must get on the next test to get an a average
Mathematics
1 answer:
Sedaia [141]3 years ago
5 0

Answer:

90

Step-by-step explanation:

Find total marks needed for a 90.

90 x 4 = 360 marks

Then, add up the marks on the three tests.

83+91+86 = 260 marks

Finally, subtract from the 360 marks needed.

360 - 260 = 100

Thus, the student needs to score 100 marks in order to get a 90.

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Answer:

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Step-by-step explanation:

We are given that

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Width of new court, b'=45 feet

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When two rectangles are similar then  the ration of their   corresponding sides are equal.

Using the  property

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