Explain and correct the error made by a student who simplified this expression.
2 answers:
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Answer:
Step-by-step explanation:
Discount = 15% of 45
= $6.75
Price of the video game = 45 - 6.75 = $38.25
Tax = 7%of 38.25
Price paid by Fatima for the video game = 38.25 + 2.68 = $ 40.93
Answer:
b = (T - a - c - d) / 3
Step-by-step explanation:
Let T be the total number of points required to advance.
a, c and d are points scored in the local matches, and b is the number of points scored in the district match. If b is worth 3 times as much as the other matches, the total number of points is given by:
Isolate b in order to find out how many points they need in the district match:
They need to score (T - a - c - d)/3, in the district match in order to win.