Middle School

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Melissa exercises for 20 minutes every day. She decides to increase her daily exercise time by 5 minutes each week. However, according to her doctor’s orders, she can spend no more than 45 minutes a day exercising. For how many weeks can Melissa increase her exercise time this way?

Answer :

Answer: 5

Step-by-step explanation:

Given: Melissa exercises for 20 minutes every day.

She decides to increase her daily exercise time by 5 minutes each week.

Let x be the number of weeks can Melissa increase her exercise time this way.

Then according to the question, we have the inequality as :_

[tex]20+5x\leq45\\\Rightarrow\ 5x\leq25\\\Rightarrow\ x\leq5[/tex]

Hence, the number of weeks can Melissa increase her exercise time this way = 5.

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Rewritten by : Barada

She can increase her time for 5 weeks