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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8 is the answer because it is the biggest answer that can fit into both 16 and 24.
Answer:
Step-by-step explanation:
(-13 - 7)/(-1 + 3) = -20/2 = -10
y - 7 = -10(x - 3)
y - 7 = -10x + 30
y = - 10x + 37
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.