6. Alvin’s Grades In His 4 Subjects Are 88 , 92, 89 ,90. What Grade…

6. Alvin’s grades in his 4 subjects are 88 , 92, 89 ,90. What grade must he get in his 5th subject to get an average of 90?

Answer:

91 should be his 5th grade

Step-by-step explanation:

Average of 90 x 5=450

Total Grades 88+92+89+90=359

450-359= 91

See also  A Store Sold 7 Gallons Of Palm Oil And 8 Gallons Of Of Olive Oil.What F...