Mark has an average of 88 on his first four math tests. What grade must he earn on his fifth test in order to raise his average to 90 ?
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Answered by
3
Answer:
(88+88+88+88+ x)/5=90
450-352=x
98=x
98 marks in last test
Answered by
2
Answer:
He must earn 98 Marks on his Fifth Test in order to raise his average to 90.
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