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Mathematics 9 Online
OpenStudy (kikid):

The cost per minute for a conference phone call, originally $2.60, increased by 30%. What is the new price? a) $2.90 b) $3.20 c) $3.38 d) $3.48

OpenStudy (brokenstanzas):

What do you think the answer might be?

OpenStudy (harman.singh):

So originally, its 2.60 Then they added another 30% of 2.60 to the overall cost. Do you know how to calculate the added cost?

OpenStudy (kikid):

nope, or else i would have been able to answer the question

OpenStudy (brokenstanzas):

You would multiply 2.60 by .3 then add the product to 2.60

OpenStudy (maddielb):

^

OpenStudy (harman.singh):

You need to find 30% of 2.60 and add it to the overall cost. Do you know how to solve percentages?

satellite73 (satellite73):

to increase a number by \(30\%\) multiply it by \(100\%+30\%=130\%=1.3\)

OpenStudy (22chocolate22):

It is $3.38

OpenStudy (kikid):

thanks guys

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