Jordy has these scores on the exams for this semester:89 and 58.How much will he have to make on the third exam to have a final average of at least 77%? help me please

Question

anonymous · Answer

81 or better
		
84 or better
		
88 or better
		
90 or better
answers :)

mertsj · Answer

Do you know how to find an average of 3 numbers?

anonymous · Answer

dont you divide them?

mertsj · Answer

You add all three numbers together and divide by 3.

mertsj · Answer

So if you get 100, 60, and 80 on three tests, your average is 100+60+80 divided by 3

anonymous · Answer

89 and 58 on the first to test i doesnt say the 3 what he got on it?

mertsj · Answer

So how about we call it x?

anonymous · Answer

2* test i mean sorry

anonymous · Answer

so i have to plug in the possible answer to see what fits

mertsj · Answer

You could do that but it would be better (to help you learn) if you would write and solve the equation.

anonymous · Answer

hold on a sec lemme try

anonymous · Answer

i got 84?

mertsj · Answer

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anonymous · Answer

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