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kvv77 [185]
3 years ago
5

Help pls will give 10 points​

Mathematics
1 answer:
patriot [66]3 years ago
4 0

Answer:

In the picture

Step-by-step explanation:

I hope that it's a clear explanation.

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Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for
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Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have the ordered pairs

(100,54) and (660, 138)

substitute

m=\frac{138-54}{660-100}

m=\frac{84}{560}=\$0.15\ per\ minute

step 2

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=0.15\\point\ (100,54)

substitute

y-54=0.15(x-100)

step 3

Convert to slope intercept form

Isolate the variable y

y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

6 0
3 years ago
Which polygon has an interior angle sum of 1260°?
Liono4ka [1.6K]

Answer:

Step-by-step explanation:

Sum of interior angle of any polygon =(n-2) × 180°where n represents the number of sides in any polygon.

Or 1260 =(n-2)x180

Dividing both sides by 180:

7=n-2

Adding both sides by 2 we have :

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<h3><u>Answer:</u></h3>
  • The value of x is 17.
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<u>We know that the lines are parallel because it is given that:</u>

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<u>Now, let's form an equation.</u>

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Hence, the value of x is 17.

BrainiacUser1357

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2 years ago
If 20+20 is 40 percent what is 20 of half percent.
hichkok12 [17]
I don’t know if this is correct: 40%
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