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kozerog [31]
3 years ago
7

A cell phone company offers two monthly plans.Subscribers to plan a pay a monthly fee of 15 and are charged 34 cents for every m

inute of cell phone usage.Subscribers to the second plan,plan b pay a monthly fee of 10 /‘d ate charged 5 cents for every minute of cell phone usage Martha can afford no more than 40 per month for a cell phone plan which plans should she choose
Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0

Answer:

he/she should chose the 1 one cause he or she can afford it

Step-by-step explanation:

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Step-by-step explanation:

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What is the sum of a 56-term arithmetic sequence where the first term is 6 and the last term is 391?
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There are 32 students in a class. Of the class, 3/8 of the students bring their own lunches. How many students bring their lunch
OverLord2011 [107]

Answer:

The number of students that bring their lunches is 12        

Step-by-step explanation:

Let

x -----> the number of students that bring their lunches

y -----> the total number of students in a class

we know that

The number of students that bring their lunches divided by  the total number of students in a class must be equal to 3/8

\frac{x}{y}=\frac{3}{8}

x=\frac{3}{8}y  -----> equation A

y=32 -----> equation B

substitute the value of y in equation A and solve for x

x=\frac{3}{8}(32)

x=12

therefore

The number of students that bring their lunches is 12

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