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Ivenika [448]
3 years ago
11

Solve for y using this angle

Mathematics
1 answer:
svetoff [14.1K]3 years ago
3 0

Answer:

y=17

and 4y = 68

Step-by-step explanation:

4y +112 = 180 ( b/c it's linear pair)

4y =180-112 ( subtract 112 on both side)

4y= 68

y = 68/4 ( divide 4 on both side)

y= 17

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the credit remaining on a phone card in dollars is a linear function of the total calling time made with the card in minutes. Th
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Answer:

he credit remaining on a phone card (in dollars) is a linear function of the

total calling time made with the card (in minutes), as shown in the figure below.

The remaining credit after 45 minutes of calls is $22.80 , and the remaining

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What is the remaining credit after 73 minutes of calls?

;

Not sure what figure you are referring to, write an equation from the given values:

Assign the values as follows

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x2 = 64; y2 = 19.76

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Find the slope (m) using the formula: m = %28y2-y1%29%2F%28x2-x1%29

m = %2819.76-22.80%29%2F%2864-45%29 = %28-3.04%29%2F%2819%29

m = -.16

:

Write the equation using the point/slope formula: y - y1 = m(x - x1)

y - 22.80 = -.16(x - 45)

y - 22.80 = -.16x + 7.2

y = -.16x + 7.2 + 22.80

y = -.16x + 30

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Use this equation to find the credit (y) when minutes (x) = 73

y = -.16(73) + 30

y = -11.68 + 30

y = $18.32; credit after 73 minute of calls

:

:

That you can also see the original value of the phone card: x=0, y = $30

;

:

Did this help you understand what's going on here? Any questions

Step-by-step explanation:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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In the Simple Interest Formula I=prt, what does the I stand for?
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Answer:

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Step-by-step explanation:

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