To solve this problem you must apply the proccedure shown below:
1. You have the folllowing system of equations given in the problem above:
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22x − y = -23 (equation 1)
11x + 12y = 1 (equation 2)
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2. If you multiply the equation 2 by -2, and then sum the equation 1+equation 2, you obtain:
-25y=-25
y=1
3. Then, you must substitute y=1 into the equation 1, then you have:
x=-1
4. As you can see, when you solve it, the solutions are:
x=-1
y=1
Answer:
diameter=twice of radius or d=2r
and radius is half the diameter or r=d/2.
Step-by-step explanation:
As you know circle is a figure whose all points are equidistant from a fixed point or center point. the distant b/w center point and any point on the circle is called radius. and the line which passes through the center of circle and touches far both of center is called diameter.
mathematically you can understand in this way
diameter=twice of radius or d=2r
and radius is half the diameter or r=d/2.
Answer:
365 messages
Step-by-step explanation:
x = # text messages)
16.5 = 10 + .10(x - 300)
6.5 = .10x - 30
36.5 = .10x
x = 365
5(4)+5x=60
x=8
x= number of pies the club made