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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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Simplify the expression. Write your answer using only positive exponents. Evaluate any numerical powers.
gtnhenbr [62]

Answer:

  • 9x⁵

Step-by-step explanation:

<u>Use properties of exponents:</u>

  • <u />a^{b} a^{c} = a^{b+c}, (a^{b} ^)^{c} = a^{bc}, 1/a^{-b}  = a^{b}

<u>Simplify the given expression:</u>

  • 3⁴⋅x⋅(3/x²)⁻² =
  • 3⁴·x·(3x⁻²)⁻² =
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5 0
3 years ago
The sum of 5 consecutive even numbers is 100. What is the first number in this sequence?
gayaneshka [121]

Answer:

16

Step-by-step explanation:

Let's represent this with an equation, where x is the first number. The next number must be x+2, because it has to be even, not x+1, and the rest continue the same way:

x+(x+2)+(x+4)+(x+6)+(x+8) = 100

Solve for x.

5x+20 = 100

5x = 80

<u>x = 16</u>

4 0
3 years ago
You can earn 5 coins<br> What is the slope of the function below?<br> y = 4x +4
artcher [175]

Answer:

The slope is 4

Step-by-step explanation:

The answer is 4

5 0
3 years ago
Malika owns a small business selling bagels. She knows that in the last week 63
Agata [3.3K]
The correct answer is 9/14
8 0
3 years ago
X2 + 4x - 21 = 0 quadratic formula
Elena-2011 [213]

Answer:

0

Step-by-step explanation:

x2 +4x-21=0. solve for x

x =  \frac{7}{2}

x = 3 \frac{1}{2}  \ x = 3.5

6 0
3 years ago
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