lamarkattan
Answered

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PLEAAAASE HELP

Evelyn is a member of her school's track team. She competes in the mile run. Last week in practice Evelyn ran 3 1/4, 2 1/8, 2 7/8, 1 3/4, and 1 3/4. ( it's not a typo there are actually two 1 3/4)

A. Estimate how many total miles she ran in practice last week.


B. Exactly how many miles did Evelyn run last week in practice?


C. Evelyn would like to run at least 12 miles in practice this week. How many more miles will she need to run this week than last week to run 12 miles?


D. If Evelyn runs as an average of 11 3/4 miles each week in practice for the next 4 weeks, how many total miles will she run in practice for those 4 weeks?

and PLEASE, PLEASE SHOW YOUR WORK

Sagot :

patricko19
A. Thats up to you. Its an estimate.
B. 11 3/4
C 1/4 more miles
D. 47 miles

WORK

A. None
B. Adding all values together. Its not hard addition
C. 12-11 3/4= 1/4
D. 11 3/4 x 4 = 47

Step-by-step Solution:

We know that:

  • 3 1/4 + 2 1/8 + 2 7/8 + 1 3/4 + 1 3/4 = Miles ran by Evelyn last week.

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Solution (Part-a):

  • 3 1/4 + 2 1/8 + 2 7/8 + 1 3/4 + 1 3/4
  • => 13/4 + 17/8 + 23/8 + 7/4 + 7/4
  • => 26/8 + 17/8 + 23/8 + 14/8 + 14/8
  • => 66/8 + 2(14/8)
  • => 66/8 + 28/8
  • => 94/8 miles = 11 6/8 miles
  • ≅ 12 miles (Estimated)

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Solution (part-b)

  • 3 1/4 + 2 1/8 + 2 7/8 + 1 3/4 + 1 3/4
  • => 13/4 + 17/8 + 23/8 + 7/4 + 7/4
  • => 26/8 + 17/8 + 23/8 + 14/8 + 14/8
  • => 66/8 + 2(14/8)
  • => 66/8 + 28/8
  • => 94/8 miles = 11 6/8 miles (Exactly)

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Hoped this helped!

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