Answer :

If we know that 
50points ---------- 100%
x is ----------------- 84%
Know we can write
x*100%=50*84%      /:100%

[tex]x= \frac{50*84}{100}=42 [/tex] - its the result
apologiabiology
so if the test is worth 50 points and you got 84% on it you would get 50 times 84/100 points

so 50/1 times 84/100=(50*84)/(50*2)
this is also (50/50) times (84/2)
so you can take out the 50/50 which equals 1 and get 84/2 which divides to equal 42
so you will get 42 points

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