3 years ago

Jackie has a prepaid Green Phone that charges 22 cents per text message sent or received. Jackie prepays $40 on her phone.

Mathematics

1 answer:

anyanavicka [17]3 years ago

5 0

Hi there !

(40-6.56)/0.22 = 152

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The variable Z is inversely proportional to X. When X is 6, Z has the value 2.

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Inverse proportion is of the form:

y=k/x, in this case the variables are

z=k/x, and we are given the point (6,2) so we can solve for k

2=k/6

12=k, so our equation is:

z=12/x, so when x=13

z=12/13

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3 years ago

Solve the system of linear equations. <br>- 3x + 5y = 13 <br> x + 4y = -10

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Step-by-step explanation:

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2 years ago

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Convert 17.42 m to customary units. A.57'-17/8" B. 36-10 1/2" C. 442 1/2" D. 367/8" E. None of these answers is reasonable.

Allushta [10]

Answer:

E. None of these answers is reasonable.

Step-by-step explanation:

Customary units are inches, feet, yards, and miles.

Since,

1 foot = 0.3048 meters,

⇒ 1 meter = $\frac{1}{0.3048}$ feet,

17.42 meters = $\frac{17.42}{0.3048}$ feet

$=\frac{174200}{3048}\text{ feet}$

$=57\frac{ 464}{3048}\text{ feet}$

$=57\frac{58}{381}\text{ feet}$

Now, 1 feet = 12 inches,

⇒ $\frac{58}{381}$ feet = $\frac{12\times 58}{381}$ inches

= $\frac{232}{381}\text{ inches}$

Hence,

17.42 meters = $57\text{ feet }\frac{232}{381}\text{ inches}$

= 57' 232/127''

That is, None of these answers is reasonable.

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2 years ago

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Step-by-step explanation

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