Respuesta :

Answer:

Hey there!

She wants an 93, so we write the equation: [tex]\frac{87+96+98+90+92+x}{6}=93[/tex]

Multiply both sides by 6 to get: [tex]87+96+98+90+92+x=558\\[/tex]

Simplify: 463+x=558

Subtract 463 to get that x=95.

Thus, she must score a 95 to get a A as a final grade.

Hope this helps :)

mathmate

Answer:

Sally must get 95% in her sixth test!

Step-by-step explanation:

To get an average of 93 over 6 tests, the total must be

6*93 = 558

Therefore the sixth test she must get

S = 6*93 - 87 -96 -98 -90 -92 = 95

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