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2 answers:
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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:
We subtract the second equation from the first equation to eliminate the variable y and solve for x, just like this:
For y replacing in the first equation the value of x and solving for y:
So for the pair of shoes Zach earns $10 and for the pair of boots Zach earns $15
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1. Let's call the short side and the long side
.
2. The problem says that the short side is 1/3 the length of the long side. So, you can write the following expression:
3. The formula for calculate the area of a rectangle is:
4. Then, you must substitute and the value of the area into the formula and solve for
(The long side):
5. Now, you can calculate (The short side):
Therefore, the answer is: 600 feet by 200 feet.