Mathematics: There are 4 000 people at a concert. 70% of these bought their tickets in advance. How many people at the concert bought tickets in advance?

There are 4 000 people at a concert. 70% of these - id40007013804664, witerose2974

pattykline

18.11.2020

58 out of 90 = 64%

Step-by-step explanation:

Total number of marks for both tests = 60 + 90 = 150

She has 70% on test 1.

70% of 60 is 70/100 * 60 = 42 marks from test 1

To pass she needs 2/3 * 150 = 300 / 3 = 100

That means she needs 100 - 42 = 58 marks on test 2

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