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Alisiya [41]
3 years ago
15

HELP ILL GIVE BRAINIEST THIS MY LAST QUESTION!

Mathematics
2 answers:
const2013 [10]3 years ago
5 0

Answer:

Honestly, Mark above person answer as brainliest..okay

bazaltina [42]3 years ago
3 0

Answer:

  • Jim = 6 hours
  • Regina = 12 hours
  • Together at same rate = 3 hours

Step-by-step explanation:

  • Let Jim's speed  is J and Regina's speed is R and the work is W

<u>We have:</u>

  • (J + R)*4 = W
  • J = 2R

<u>Substitute J with 2R:</u>

  • (2R + R)*4 = W
  • 12R = W

Regina needs 12 hours to complete work

and

<u>Substitute R with J/2:</u>

  • (J + J/2)*4 = W
  • 6J = W

Jim needs 6 hours to complete same work

<u>If Regina works as quickly as Jim:</u>

  • J + R = 2J

Then

<u>Jim can complete 1/6 of work in one hour, they both can complete twice work:</u>

  • 1/6*2 = 1/3

<u>Time to complete work:</u>

  • 1: 1/3 = 3 hours
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6 0
4 years ago
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3 years ago
Which simpler problems could be calculated to solve this problem? Three people went to lunch and agreed to share the cost equall
Murljashka [212]
The total meal costs = $6.75+$4.25+$5.50 =$16.5

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3 years ago
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ahrayia [7]

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