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max2010maxim [7]
2 years ago
5

Ericka is choosing between two cell phone plans that offer the same amount of minutes. VeriFone has a plan that charges $39.99 p

er month with additional minutes costing $0.45 per minute. AT&Q has a plan that costs $44.99 per month with additional minutes costing $0.40. How many minutes, m, would Ericka need to use for the two plans to cost the same amount?
I need help right away please thanks
Mathematics
1 answer:
Mandarinka [93]2 years ago
4 0

Answer: can’t say the answer but i think i know youuuu from online school;)

Step-by-step explanation:

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8 0
3 years ago
Among 500 freshmen pursuing a business degree at a university, 311 are enrolled in an economics course, 243 are enrolled in a ma
Allushta [10]

Solution :

Let A = Economics, B = Mathematics

n(A) = 311, n(B) = 243, $n(A \cap B) = 135$

a). So, $n(A \cup B) = n(A) +n(B) - n(A \cap B)$

                     = 311 + 243 - 135

                     = 419

b). n(A only) = 311 - 135

                   = 176

     n(B only) = 243 - 135

                   = 108

Exactly one of these two courses

  $=\frac{176+108}{500}$

  = 0.568

c). Neither economics nor mathematics

    $=\frac{500-419}{500} $

  $=\frac{81}{500}$

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7 0
3 years ago
Suppose y varies directly with x, and y = 15 when x = 3. What is y when x = 12?
sveticcg [70]

Answer:

y = 60 when x = 12

Step-by-step explanation:

Direct variation is

y = kx

15 = k3

Divide by 3

15/3 = k

5 =k

y = 5x

Let x = 12

y = 5*12

y = 60

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Help please I’m not sure if this is right
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Answer:

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Step-by-step explanation:

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