Mac has taken seven maths exams this year. His average mark is 78%. What mark must he get on the eighth exam to raise his average to 80%?

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03-02-2021
Mathematics

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Mac has taken seven maths exams this year. His average mark is 78%. What mark must he get on the eighth exam to raise his average to 80%?

Sagot :

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i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement how thick must the cement be to cover field

You lean a ladder 6.7 meters long against a wall. It makes a 63 degree angle with the level ground. How high up is the top of the ladder?

26jhrnje 26jhrnje · Answer 1 · 2021-02-03T05:28:15-05:00

26jhrnje 26jhrnje

03-02-2021

i think it’s 94 but i don’t know

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Sagot :

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