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Lera25 [3.4K]
3 years ago
6

A question from my math class:

Mathematics
1 answer:
valina [46]3 years ago
7 0

Answer:

A) $29.68

B) $5.60

Step-by-step explanation:

<u>Part A Explanation)</u>

To find the total cost including tax, you must multiply the total cost by .06 because .06 out of 1 is 6%. <em>Quick explanation on percentages.</em>

<u><em>DO NOT FORGET TO ADD THE TOTAL COST</em></u>

28.00 + (28.00 * .06) = 29.68

<u>Part B Explanation)</u>

This is asking only for the tip, not including the total cost. However, we need the total cost to calculate the tip.

28.00 * .20 = 5.6

<em>.20 out of 1 is 20%</em>

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From the figure attached,

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Substitute these values in the formula,

Area of ΔQRS = \frac{1}{2}\text{(a.b)sinC}

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