SOLUTION: It takes an older computer twice as long to send out a company’s email as it does a newer computer. Working together, it takes the two computers minutes to send out the email. How
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Question 276089: It takes an older computer twice as long to send out a company’s email as it does a newer computer. Working together, it takes the two computers minutes to send out the email. How long will it take the older computer to send out the email on its own?
Do not do any rounding.
You didn't happen to mention how many minutes it takes for the two computers working together, so all I can do is give you a general solution and you will have to plug in the numbers.
Let represent the number of minutes it takes the old computer. Then represents the number of minutes it takes the new computer.
Then we can say that the old computer can do of the job in 1 minute, and the new computer can do of the job in 1 minute.
Working together then, the two computers can do:
of the job in 1 minute. Which is to say that the two working together can do the entire job in:
minutes.
Set equal to the number of minutes you are given that it takes the two computers working together and then solve for .
