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mash [69]
3 years ago
6

A cell phone company offers two plans.

Mathematics
1 answer:
Aneli [31]3 years ago
3 0

Answer:

80 minutes

Step-by-step explanation:

Represent Plan A as y = $26.50 + ($0.35/min)x, where x is the number of minutes consumed.  

Represent Plan A as y = $42.50 + ($0.15/min)x

We set these two equations equal to one another and solve for x, the number of minutes at which the costs of the two plans are momentarily equal:

y = $26.50 + ($0.35/min)x = y = $42.50 + ($0.15/min)x

Combining like terms, we get:             ($0.20/min)x = $16.00

                 

                  $16.00

Then x = -------------------- = 80 minutes

                 ($0.20/min)

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Alla [95]
Radius times 2 = diameter which would be 10 times 3.14 is 31.4 so it’s 31.4
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3 years ago
The water level as a river recedes after a flood is measured at regular intervals, and its height relative to normal, in inches,
kicyunya [14]

Answer:

7th measurement = -26

Step-by-step explanation:

The sequence is 16, 9, 2, –5, ...,

First term( a)= 16

Second term=9

Common difference (d) = 9-16

Common difference= -7

The sequence is a arithmetic progression

For AP's ,the terms formula is

Term(n) = a + (n-1)d

Where n represent the term to be found

In this case,we Are looking for the 7th term , so n= 7

Term(7) = 16+ (7-1)-7

Term(7)= 16 +6(-7).

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4 0
3 years ago
URGENT PLEASE HELP!!!
Ira Lisetskai [31]

Answer:

1) -17x-9

Step-by-step explanation:

1)

(-2x^3+x-5)+(x^3-3x-4)

Combine like terms using P.E.M.D.A.S:

(-2x^3+x-5)+(x^3-3x-4)

(-9x-5)+(-8x-4)

Combine like terms:

(-2x^3+x-5)+(x^3-3x-4)

(-9x-5)+(-8x-4)

-17x-9

I hope this helps a bit!☺

8 0
3 years ago
1 1/4 pints how many ounces
Pani-rosa [81]

Answer:

20 oz

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME !!!!
ziro4ka [17]

Answer:

<em>k = 29</em>

29 + 6 = 35

-3 + 5 = 2

35 + 2 = 37

4 0
3 years ago
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