Answer:
76 on second exam, 80 on third exam
Step-by-step explanation:
First, find the total of all 3 test scores by multiplying the average by the number of elements. 81 · 3 = 243.
The first score is 83 so 243 - 83 = 160. 160 is the other two test scores combined.
To find the other 2 scores, divide 160 by 2, which is 80.
The second score is 4 less so it will be 76. The third score is 80.
Answer:
21 because -1/4a - 4 is 22
Answer:
he should use the kohls cash first
Step-by-step explanation:
He should use the kohls cash first , then the 25% off. He should do this because the cashier will ask him after he hands her the kohls cash about the discount.
Answer:
x = 20
Step-by-step explanation:
