Respuesta :

Americ
x= fourth test score

Add the 4 test scores and divide that total by 4 to equal the average.


(68 + 67 + 88 + x)/4= 73.5
add in parentheses

(223 + x)/4= 73.5
multiply both sides by 4

223 + x= 294
subtract 223 from both sides

x= 71


ANSWER: 71 was the score on the 4th test.

Hope this helps! :)

Otras preguntas

Q&A Education