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3 years ago

Renata wins a $20 gift card to an online music site. After Renata purchases 16 songs, the gift card has a remaining

Mathematics

1 answer:

amm18123 years ago

7 0

Answer: $y=20-1.25x$

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope of the line and "b" is the y-intercept.

You need to analize the information given in the exercise.

You know that gift card had a total of $20. Then, since she started to buy the songs with $20, you can identify that:

$b=20$

Since Renata purchased 16 songs and the gift card had a remaining balance of $0 after this, you can find the cost of each song. This is:

$\frac{20}{16}=\$1.25$

Therefore, she spent $1.25 per song. This means that the slope is:

$m=-1.25$

Then, you get that the equation that represents the relationship between "y" (the remaining balance on Renata's gift card) and "x" (the number of songs purchased) is:

$y=20-1.25x$

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Check.

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Step-by-step explanation:

Given parametric equations:

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@Given point (x,y) = 0 we evaluate t

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3 years ago

Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the sq

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Answer:

Step-by-step explanation:

Remark

This is one of those questions that can throw you. The problem is that do you include the original rectangle or not. The way it is written it sounds like you shouldn't

However if you don't the question gives you 2 complex answers. (answers with the sqrt( - 1) in them.

Solution

Let the width = x

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Area of the rectangle: L * w = x * (x + 5)

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Step-by-step explanation:

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The formula for calculating the midpoint of coordinate is expressed as:

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Learn more on midpoint here: brainly.com/question/5566419
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