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3 years ago

15

The start-up cost to join eTunes music is $7.95 plus $0.95 per song downloaded. If Will spent $26, write and solve a linear equa

tion to find how many songs he downloaded .

1 answer:

Oksanka [162]3 years ago

6 0

Y = 0.95x + 7.95
26 = 0.95x + 7.95
Solve for x
26-7.95 =0.95x
18.05/0.95 = x
X = 19 songs

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3 years ago

What is the equation of the line that passes through the point (8, -4) and<br> has a slope of 1/2

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Step-by-step explanation:

1. Approach,

For this problem, the format of a line that will be used is, slope-intercept form;

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Where ( $m$ ) is the slope of the line, also known as the change in the line and $(b)$ is the y-intercept, or where the graph of the line intersects the y-axis. Since, in this problem, the slope of the line is given, all one has to do is substitute in a point on the given line and solve.

2. Finding the equation,

In this problem, the slope of the line is given. Therefore, to solve this problem, all one has to do is substitute in a point on the given line and solve.

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Simplify,

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2 years ago

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kari74 [83]

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It is also provided that a student taking the examination answers each of the questions with an independent random guess.

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Thus, the probability that the student answers at least seventeen questions correctly is $8.03\times 10^{-10}$ .

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