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zvonat [6]
3 years ago
13

Emma signed up for a streaming music service that costs $6 per month . The service allows Emma to listen to unlimited music, but

if she wants to download songs for offline listening, the service charges $0.75 per song. How much total money would Emma have to pay in a month in which she downloaded 40 songs? How much would she have to pay if she downloaded s songs ?
a Cost for 40 songs :
Cost for s songs :
Mathematics
2 answers:
damaskus [11]3 years ago
7 0

Answer:

She would have to payed 36 dollars;

for the second part, i dont get it

Step-by-step explanation:

.75x40= 30

30+6 = 36

Lera25 [3.4K]3 years ago
4 0

Answer:

Cost for 40 songs: $36

Cost for s songs: 0.75s + 6

Step-by-step explanation:

Set up an equation:

Variable s = number of songs

Variable x = number of months

0.75s + 6x

Solve for 40 songs in 1 month:

0.75(40) + 6(1)

30 + 6

$36

Solve for s songs:

0.75s + 6(1)

0.75s + 6

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6 0
2 years ago
Y=2x^2+12x+14 in vertex form
balandron [24]

Answer:

y = 2(x + 3)² - 4

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Using the method of completing the square

y = 2x² + 12x + 14 ← factor out 2 from the first 2 terms

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To complete the square

add/subtract ( half the coefficient of the x- term)² to x² + 6x

y = 2(x² + 2(3)x + 9 - 9 ) + 14

  = 2(x + 3)² - 18 + 14

  = 2(x + 3)² - 4 ← in vertex form

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3 years ago
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3 years ago
Write 0.4 as a fraction
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4 0
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Vesnalui [34]

Answer:

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Step-by-step explanation:

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