Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Connect with professionals on our platform to receive accurate answers to your questions quickly and efficiently. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

Samantha is going to run in a 5K race. To prepare, she wants
to run an average of 40 minutes a day until the marathon
on Saturday. She ran 45 minutes on Monday, 30 minutes on
Tuesday, 55 minutes on Wednesday, and 25 minutes on
Thursday. How long should she run on Friday to reach her
goal?


Sagot :

The number of minutes Samantha needs to run on Friday to reach her goal is 45 minutes.

Average

  • Monday = 45 minutes
  • Tuesday = 30 minutes
  • Wednesday = 55 minutes
  • Thursday = 25 minutes
  • Friday = x minutes

Average = (Monday + Tuesday + Wednesday + Thursday + Friday) / 5

40 = (45 + 30 + 55 + 25 + x) / 5

40 × 5 = 155 + x

200 = 155 + x

200 - 155 = x

45 = x

x = 45 minutes

Learn more about average:

https://brainly.com/question/20118982

#SPJ1