$24
(ignore this i don’t have enough characters )
(ignore this i don’t have enough characters )
Your friend purchased a medium pizza for 10.31 with a 30% off coupon. What is the price without the coupon
2 answers:
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Solution: We are given:
Predicted Sales by Sameera
Actual Sales by Sameera
Now to find the Percent error, we have to use the below formula:
Therefore, the percent error is
Let:
x = Chemistry textbooks sold
y = Physics textbooks sold
The textbook store sold a combined total of 260, so:
The number of chemistry books sold was three times the number of physics textbooks sold, so:
Let:
Replace (2) into (1):
Replace the value of y into (2):