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Alexandra [31]
3 years ago
13

A cell phone company charges a flat fee of 20 dollars plus 3 cents a call. What is the total bill if there was a total of 200 ca

lls for the month.
Mathematics
1 answer:
34kurt3 years ago
8 0

Answer:

Total Bill = 4006 dollars

Step-by-step explanation:

A cell phone company charges a flat fee of 20 dollars plus 3 cents a call.

If there was a total of 200 calls for the month, the total charge by the cell phone company will be.

Let me convert all to cent first

100 cent = 1 dollar

20 dollar =20 *100

29 dollar = 2000 cent

Charge by the company for a call is 2003 cent

Let me put down the equation.

1 call = 2003 cent

200 calls =( 200 calls* 2003cent)/1 call

200 calls = 200 * 2003cent

200 calls = 400600 cent

Let's convert back to dollar

100 cent = 1 dollar

400600 cent = 400600/100

400600 cent = 4006 dollars

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If 6 feet of rope cost 7.50 how much does 50 feet cost
alexandr402 [8]

Answer:

$62.50 for 50 feet

Step-by-step explanation:

$7.50/(6 feet) = $1.25/foot

($1.25/foot)*(50 feet) = <u>$62.50 for 50 feet</u>

5 0
2 years ago
Find the output, y, when the input, x, is 30. y = 14 - 0.5x y = _________
o-na [289]

Answer:

\Huge \boxed{y=-1}

\rule[250]{250}{3}

Step-by-step explanation:

y=14-0.5x

The input x is 30. Switching x with 30.

y=14-0.5(30)

Solving for y.

y=14-15

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3 years ago
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The slope of the line passing through the points (7, 5) and (21, 15) is
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Step-by-step explanation:

a) The slope formula is given by

m = (y2 - y1)/(x2 - x1)

Let P1(7, 5) and P2(21, 15)

m = (15 - 5)/(21 -7)

= 10/14

= 5/7

b) Let's see if the slope is only a third of the one found in part (a) or m = 5/21. Let P1(0, 0) and P2(21, 5).

m = (5 -0)/(21 - 0)

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3 0
3 years ago
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What is the equation of a line that contains the point (4, 0) and is parallel to x + y = 2?
slega [8]

Answer:

x + y = 4 or y = -x + 4

Step-by-step explanation:

0 = -1[4] + b

4 = b

y = -x + 4

If you want it in <em>Standard Form</em>:

y = -x + 4

+x +x

_________

x + y = 4 >> Line in Standard Form

* Since the <em>rate of change</em> [<em>slope</em>] is -1 and that parallel lines have SIMILAR SLOPES, -1 remains the same.

I am joyous to assist you anytime.

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4 years ago
A stick is x meters long. a string is 4 times as long as the stick.
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Answer:

Step-by-step explanation:

Length of stick = x meters

Length of string = 4 * length of stick

                         = 4 * x

                          = 4x

4 0
3 years ago
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