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laila [671]
2 years ago
9

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

0. Which equation represents the relationship between y, the remaining balance on Renata’s gift card, and x, the number of songs purchased?
Mathematics
2 answers:
Lina20 [59]2 years ago
5 0

Answer:

The answer is 5x + 4y = 80

Step-by-step explanation:

This is cause Renata wins a $20 gift card to an online music site. After Renata purchases 16 songs, the gift card has a remaining balance of $0.  So you get that equation. (For anyone who needs it now.)

Sveta_85 [38]2 years ago
3 0
$20 bought 16 songs
Therefore each song costs $20/16 = $5/4 = $1.25
So:
2 songs would cost 2 * $1.25
3 songs would cost 3 * $1.25
...
x songs would cost x * $1.25

Since Renata started with $20, then her balance (y) after buying x songs would be:

y = 20 - 1.25*x
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Step-by-step explanation:

This is one minus the probability that all the girls audition for different roles. The total number of ways of assigning roles to the girls is 12^7, because to each of the 7 girls, you have a choice of 12 roles.

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The degree measure of angle a is 135°. which expression below is equivalent to the radian measure of angle a?
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It is given that \angle a=135^{\circ}.

Now, know that in 180 degrees there are \pi radians. This can be written as:

180^{\circ}=\pi radians

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Thus, to find the measure of the given angle of 135^{\circ} in radians, we will have to multiply the above equation by 135. Thus, we get:

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