Question

Amy’s current grades for her assignments in math class are 85, 90, 95, and 80. What grade does she have to earn on her next assignment to attain an average of 90?

Answer 1

Answer:

100

Step-by-step explanation:

We'll assume that the next assignment gets x marks

Since the average has to be 90,

85+90+95+80+x/5=90

350+x=450

x=450-350

x=100

Hope it helps you!