ariel has test scores of 90, 74, 82, and 90. The next test is the final exam, which counts as two tests. what score does the student need on the final exam to produce an average score of 90?

116

Step-by-step explanation:

(90+74+82+90+x)/5=90

x=450-(90+74+82+90)

x=116

i think this could be a possible answer (1 / 84) -1

good luck! : d

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72