Question

Tony knows that his score on the state wide math exam in June will count as 2 grades. He presently has 4 quarterly great that average out to 88 what possible grades can he get on his state finals to achieve an A Average which Is 90 or Better? The maximum Possible Grade is 100.

Answer 1

Answer:

$91,92,93,94,95,96,97,98,99,100$ are all the grades to get above/or 90.

Step-by-step explanation:

Since each count as two grades then just add all possible values and divide them by 3 to get the average. We have to divide by three because 6/2 =3:

$\frac{88+90+90}{3} = 89$

$\frac{88+91+91}{3} = 90$

$\frac{88+92+92}{3} = 91$

$\frac{88+93+93}{3} = 91$

$\frac{88+94+94}{3} = 92$

$\frac{88+95+95}{3} = 93$

$\frac{88+96+96}{3} = 93$

$\frac{88+97+97}{3} = 94$

$\frac{88+98+98}{3} = 95$

$\frac{88+99+99}{3} = 95$

$\frac{88+100+100}{3} = 96$

Hope it Helps!