You and your friend are swim team. You want to beat your friend at the next swim meet so you decide to swim 15 minutes longer than she does one day at practice

Step-by-step explanation:

Given:

Let The number of minutes you swim, y and number of minutes your friend swims as x.

To swim longer than your friend, y will add 15 minutes to her swim time. Assuming they tie, the minutes x takes is equal to the "final" minutes y takes.

Total number of time taken to swim = x

= y + 15

x = y + 15

y = x+15

Step-by-step explanation:

I think your question is lack of information. So I think the below full question may fit you well:

You and your best friend are both on the swim team. You want to beat your friend at the next swim meet so you decide to swim 15 minutes longer than she does one day at practice. Write an equation for the number of minutes you swim, y, when your friend swims x number of minutes

My answer:

Given:

y : the number of minutes you swim

x : the number of minutes your friend swim

If You want to beat your friend at the next swim meet so you decide to swim 15 minutes longer than her, so we have the equation as following:

y = x+15

Hope it will find you well