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grin007 [14]
2 years ago
9

Zach is a shoe salesman, and he works on commission. This week, there is a special incentive to sell shoes and boots by a certai

n company. Yesterday, Zach sold 5 pairs of shoes and 9 pairs of boots, earning $185 in commission. Today, he sold 7 pairs of shoes and 9 pairs of boots, earning a total commission of $205. How much does Zach earn for the sale of each type of footwear?
Mathematics
1 answer:
Alexandra [31]2 years ago
7 0

Answer:

Zach earns $10 and for the pair of boots Zach earns $15

Step-by-step explanation:

Let be x the number of pairs of shoes

Let be y the number of pairs of boots

Then we can establish the following system of equations with the data of the statement:

5x + 9y = 185 \\7x + 9y = 205

We subtract the second equation from the first equation to eliminate the variable y and solve for x, just like this:

7x+9y-5x-9y=205-185\\2x=20\\x=\frac{20}{2}\\x=10

For y replacing in the first equation the value of x and solving for y:

5.10 + 9y = 185\\9y=185-50\\y=\frac{135}{9}\\y=15

So for the pair of shoes Zach earns $10 and for the pair of boots Zach earns $15

Please mark be as brainliest if you found this helpful. please

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Answer:

6m

Step-by-step explanation:

the side of first square = 3 m

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since diagonal of first square = x m as per the question

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therefore in second square ,

one angle is 90  degree , therefore by applying pythagorue theorem

diaqonal^2 = side ^2 + side ^2 = (3\sqrt{2})^2 + ( 3\sqrt{2})^2

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hope it helps you... please mark me as the brainliest..

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<h3>Which is the equation of the parabola?</h3>

The relevant information is that we have the vertex at (0, 5), and that the parabola opens downwards.

Remember that the parabola only opens downwards if the leading coefficient is negative. Then we can discard the two middle options.

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