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Law Incorporation [45]
3 years ago
8

Two phone companies, Unitel and Cellberry, offer different cell phone data plans. Unitel's plan charges $19.95 per month and $14

.95 for each gigabyte of data. Cellberry's plan charges $9.95 per month and $17.50 for each gigabyte of data.
a. Write a system of equations to represent the two plans and solve it by graphing.

b. Interpret the solution to the system. How many gigabytes do you get when the two plans cost the same amount. What will the cost of the plans be?

c. If you need more than 3.92 gigabytes of data, which company should you choose.
Mathematics
1 answer:
scoundrel [369]3 years ago
6 0

For The First Question a Part Do You Need a Graph ?

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To solve this we will divide the given composite figure into three figures. The three figures will be 2 squares and 1 rectangle. Let's find their areas and add them!

\boxed{ \sf \: area \: of \: square =side ^{2}  }

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\rm \implies \: area = 3 ^{2}

\rm \implies9

<em>Thus, The area of 1st square is 9m²...</em>

  • The area of second square will be also 9m², because the sides of both squares are equal.

<h3>Now area of the reactangle⤵️</h3>

  • Length = 6m
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\sf \: area \: of \: rectangle = length \times breadtg

\tt \dashrightarrow \: area = 10 \times 3

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Marizza181 [45]

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What is the awnser to this question
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Which is the better buy?
Morgarella [4.7K]

Answer:

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Step-by-step explanation:

<u><em>3,805 pounds of cement for $266.35</em></u>

266.35 : 3,805= 0.07

check your work:  3,805 x 0.07 = 266.35

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for the second offer you will be paying $0.14 per pound of cement. 3,805 pounds of cement for $266.35 is a better buy because you will be paying half of the price for each pound.

hope this helps!

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