Question

Joaquin has a grade of 81 and 70 on her first two algebra test if she wants an average of 73 what possible score can she get on her last test

Answer 1

81 + 70 + x = 3(73)
first multiply 3(73)

81 + 70 + x = 219
combine like terms

151 + x = 219
subtract 151 from both sides

x = 68

Joaquin needs to score a 68 on her next test to maintain an average of 73.