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3 years ago

Grade 7 : Help, anyone? Urgent!!!!!!!!

Mathematics

1 answer:

MariettaO [177]3 years ago

4 0

Materials = $4.25
Labor = $5.35
Sale Price = $16.99

A.) Profit = Sale Price - (Materials + Labor)
Profit = 16.99 - (4.25 + 5.35)
Profit = 16.99 - (9.60)
Profit = $7.39

Profit / Sale Price = % Profit
7.39 / 16.99
or
739 / 1699

B.) % Profit = Profit / Sale Price × 100
  % Profit = 7.39 / 16.99 × 100
  % Profit = 0.43496 × 100
  % Profit = 43.496 %
  % Profit = 43 %

C.) Total Sales = $324.86

Necklaces Sold = Total Sales / Individual Sale Price
Necklaces Sold = 324.86 / 16.99
Necklaces Sold = 19.12

**This question is absolutely ridiculous because either she made money from tips or someone either paid too much or too little**

Total Profit = Necklaces Sold × [Sale Price - (Materials + Labor)]
Total Profit = 19 × [16.99 - (4.25 + 5.35)]
Total Profit = 19 × (7.39)
Total Profit = $140.41

OR

Total Profit = 20 × (7.39)
Total Profit = $147.80

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See attachment for the graphs of LMN and L'M'N

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The distance between point L and the center of origin is the same as the distance between point M' and the center of origin

Similarly, the distance between point L and the center of origin is the same as the distance between point M' and the center of origin

(c) Line NN'

Line NN' will assume the same characteristics as lines LL' and MM'