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Alika [10]
3 years ago
7

What is the solution to the system of equations?

Mathematics
1 answer:
Taya2010 [7]3 years ago
7 0

Answer:

x=-4, y=15

Step-by-step explanation:

3x+y=3

2x+y=7

Multiply top by -1

-3x-y=-3

2x+y=7

Add equations together

-x=4

x=-4

Plug x=-4 into any equation

3(-4)+y=3

-12+y=3

y=15

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The answer is <span>$494.55</span>

Let's first imagine a circle and calculate its area and then reduce it in half for the area of a semi-circle. Since this opening is above <span>a 30-inch wide door, the circle will have a diameter of 30 inches.
The area of the circle (A) is:
A = </span>π · r²
where:
π = 3.14
r - radius: r = diameter ÷ 2 = 30 ÷ 2 = 15 inches

So, the area of the circle is:
A = π · r² = 3.14 · 15² = 706.5 inches²

The area of the semicircle is half of the area of the circle:
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3 years ago
A kitten’s mass at birth was 0.09 kilogram. The kitten gained approximately 0.084 kilogram each week. After how many weeks is th
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Answer:

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<u>Solution:</u>

Given, Crystal has 121 compact discs that she wants to put into boxes.  

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