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4 votes
Lee really wants a cell phone but wonders if it is too expensive. He decides to get

the cheapest plan that costs $27.50 per month. He has 150 minutes free. Additional
minutes are 35¢ each. He ends up using the phone way more than he expected. He
ends up using 400 minutes in total. How much extra does Lee have to pay?

User Wentwrong
by
6.8k points

2 Answers

3 votes

Answer:

$87.50

Explanation:

first minus the number of minutes he doesn't have to pay

400 - 150 = 250

then times the number of leftover minutes by how much it costs a minute ($.35 because 35¢ is equal to $.35)

250 × $.35 = $87.50

that's how much.

User Disfated
by
7.1k points
4 votes

Answer:The extra amount that he paid is $87.5

Explanation:

The plan that Lee got costs $27.50 per month. He has 150 minutes free. Additional minutes are 35¢ each. Converting 35¢ to dollars, it becomes 35/100 = $0.35

Let x represent the total number of minutes that Lee used. Let y represent the total cost of using x minutes. Therefore,

y = 27.50 + 0.3535(x - 150)

He ends up using the phone way more than he expected. He

ends up using 400 minutes in total. The total cost of using 400 minutes will be

y = 27.50 + 0.35(400 - 150) = 27.50 + 87.5 = $115

The extra amount that he paid is

0.35(400 - 150) = $87.5

User Daniel Braun
by
6.7k points