Question 63226
Current scores: 84,92,90,82,87
Current # of assignments: 5
Current Total: 435
Current Average: 69


Final scores: 84,92,90,82,87,x
Final # of assignments: 6
Final Total: 345+x or 88*6 = 528
Final Average: 88


A x N = T
Average times Number equals Total
(work this for both sets of numbers)
F: {{{ 88 * 6 = 528 }}}
C: {{{ 69 * 5 = 435 }}}
Subtract the two equations
T: {{{ A * 1 = 93 }}}
He needs a 93 to raise his 69 to an 88