One song download costs $2 and one movie download costs $11.
Step-by-step explanation:
Let,
Price of one song download = x
Price of one movie download = y
According to given statement;
8x+9y=115 Eqn 1
15x+9y=129 Eqn 2
Subtracting Eqn 1 from Eqn 2
Dividing both sides by 7
Putting x=2 in Eqn 1
Dividing both sides by 9
One song download costs $2 and one movie download costs $11.
Keywords: linear equation, elimination method
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Answer:
12
Step-by-step explanation:
Answer:
Because when 4:6 is simplified, you get 2:3, but when 8:10 is simplified, you get 4:5
So, they are not equivalent ratios because their simplified ratios are not the same.
Step-by-step explanation:
Hope this is helpful.
277 years because 831 people/3 people per year = 277 years
<h3>we know that</h3><h3></h3><h3>the equation of a circle is</h3><h3>(x-h)²+(y-k)²=r²</h3><h3>where the center is the point (h,k)</h3><h3>r is the radius </h3><h3>if the center is the origin</h3><h3>so</h3><h3>(h,k) is (0,0)</h3><h3></h3><h3>the radius is the distance from point (0,5) to the origin (0,0)</h3><h3>r=√[(-5)²+(0)²]-------> r=√25---------> r=5 units</h3><h3></h3><h3>the equation is</h3><h3>(x-h)²+(y-k)²=r²------------> (x-0)²+(y-0)²=5²----------> (x)²+(y)²=25</h3><h3></h3><h3>Does the point (–3, –4) also lie on the circle?</h3><h3>the distance from the center to (–3, –4) is</h3><h3>d=√[(-4)²+(-3)²]-------> d=√25--------->d=5 units</h3><h3></h3><h3>d=r</h3><h3>therefore</h3><h3>the point (-3,-4) also lie on the circle</h3>