SOLUTION: if a arithmetic student needs an average of 70 or more to receive credit for the course. She scored 82, 64, and 98 on the first three exams. Write an inequality representing the

Question 61102: if a arithmetic student needs an average of 70 or more to receive credit for the course. She scored 82, 64, and 98 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course.
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
(82+64+ 98+x)/4=70
(244+x)/4=70 [solve for x]
(4)(244+x)/4=(4)(70)
244+x=280
x=-244+280
x=36
.
Check by plugging (x=36) back into the original equation:
(82+64+ 98+36)/4=70
70=70

RELATED QUESTIONS
An arithmetic student needs an average of 70 or more to receive credit for the course.... (answered by Adam)

An arithmetic student needs an average of 70 or more to receive credit for the course.... (answered by checkley71)

An arithmetic student needs an average of 70 or more to receive credit for the course.... (answered by Nate)

An arithmetic student needs an average of 70 or more to receive credit for the course.... (answered by junior403)

An arithmetic student needs an average of 70 or more to receive credit for the course.... (answered by stanbon)

An arithmetic student needs an average of 70 or more to receive credit for the course.... (answered by solver91311)

An Arithmatic student needs an average of 70 or more to receive credit for the course.... (answered by checkley75)

Student need an average of 70 or more to receive credit for the course. She scored 82,... (answered by Earlsdon)