The cost for a certain music plan is $9.99 per year plus $0.25 per song you downloaded. If you paid $113.74 one year, find the number of songs you downloaded
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Related Questions
1/2(4x-9)=2x+8A. exactly one real solution, B. no real solutionsC. infinite real solutionsD. exactly one real solution,
A coin is biased to display heads 75% of the time . It’s tossed 20times and the out comes are recorded the most improbable simulation for this coin is __ heads 9 131415
I am a factor of 22 but not a multiple of 2
Which value x makes the equation 0.75(x+20)=2+0.5(x-2)
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13
Hope I Helped!!!
-RainyClouds
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= 5 37/100
–32 + = 2(x2 + 10x + 25)
18 = 2(x + 5)2
9 = (x + 5)2
± = x + 5
x = –2 or x =
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Answer:
x = - 2 or x = - 8
Step-by-step explanation:
Given
2(x² + 10x) = - 32 ( divide both sides by 2 )
x² + 10x = - 16
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(5)x + 25 = - 16 + 25
(x + 5)² = 9 ( take the square root of both sides )
x + 5 = ± = ± 3 ( subtract 5 from both sides )
x = - 5 ± 3, thus
x = - 5 + 3 = - 2 or x = - 5 - 3 = - 8
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y = 3x + 2
y = 3x – 2
y = –2x + 3
y = –2x – 3
2.Adriana writes the equation y = 2x + 4 to represent a line on a graph. Henry writes an equation that has a y-intercept that is 1 unit lower on the graph but has the same slope as Adriana’s line. Which is Henry’s equation?
y = x + 4
y = 3x + 4
y = 2x + 3
y = 2x + 5
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Explanation: the slope is the number on the left side of x and the y-intercept is on the right side of x.
2) the answer is y=2x+3
Explanation: Henry's slope is the same as Adriana's (2/1). Henry's y-intercept is one lower than Adriana's, so you subtract (4-1=3) - Henry's y-intercept is 3.
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Hope this helps!!
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