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kkurt [141]
3 years ago
7

How to set up and solve a system of equations to solve a problem

Mathematics
1 answer:
Paladinen [302]3 years ago
6 0

Answer:

Step-by-step explanation:

Step 1: Solve one of the equations for one of the variables.

Step 2: Substitute that equation into the other equation, and solve for x.

Step 3: Substitute x values into one of the original equations, and solve for y.

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Simplify the expression – (7x-6).
german

Answer:

-7x+6

Step-by-step explanation:

Use the distributive property.

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A window is being replaced with tinted glass. The plan at the right shows the design of the window. Each unit length represents
PolarNik [594]
The answer is $911.68.

After a little research on the internet, I found the design of the window.
First, you need to find the area of the window which is a composite figure made up of a rectangle and a circle. So, the total area (A) is the sum of the area of the rectangle (A1) and the area of the circle (A2).

Area of the rectangle with length l and width w is:
A = l * w
According to the image, l = 5 ft and w = 4 ft.
A1 = 5 * 4 = 20 ft²

Area of the circle with radius r is:
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The area of the window is:
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<span>The glass costs $28 per square foot, so to replace the glass will cost:
</span>32.56 ft² * $28/ft² = $911.68
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4 years ago
You buy a car for $22,000 and every year your car depreciates by 14% (in other words, you car decreases in value by 14% every ye
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Answer:

The car worth in 4 years will be $9,880

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3 years ago
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