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andreev551 [17]
3 years ago
12

A phone company offers two monthly plans. Plan A costs 14 plus an additional 0.09 for each minute of calls. Plan B costs 18 plus

an additional 0.07 for each minute of calls. For what amount of calling do the two plans cost the same? What is the cost when the two plans cost the same?
Mathematics
1 answer:
Sliva [168]3 years ago
8 0

Answer:

200 minutes

Step-by-step explanation:

14 + 0.09 x = 18 + 0.07 x

0.09 x - 0.07 x = 18 - 14

0.02 x = 4

x = 400/2 = 200

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3) Solve the System of Equations using Elimination/Combinations. (5 points)
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Answer:

(1, 2 )

Step-by-step explanation:

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Add (1) and (3) term by term to eliminate x

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Rudik [331]

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Read 2 more answers
Calculate the area of the regular pentagon below:
jarptica [38.1K]

Answer: 238.95 in²

because this is a regular pentagon

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Step-by-step explanation:

4 0
3 years ago
Henry sells rings for $8 dollars each his expenses are $1.50 per ring plus $91 for supplies how many rings does he need to sell
Ne4ueva [31]

Henry needs to sale 14 rings for his revenue to equal his expenses.

Step-by-step explanation:

Given,

Selling price of ring = $8

Expense on one ring = $1.50

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x represent the number of rings.

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Equal expenses means;

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8x=91+1.50x\\8x-1.50x=91\\6.5x=91

Dividing both sides by 6.5

\frac{6.5x}{6.5}=\frac{91}{6.5}\\x=14

Henry needs to sale 14 rings for his revenue to equal his expenses.

Keywords: revenue, division

Learn more about division at:

  • brainly.com/question/7932185
  • brainly.com/question/788903

#LearnwithBrainly

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