alyahmarie00 alyahmarie00

08-10-2021
Mathematics

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Jackie and a classmate spent a total of 20 hrs working on a chemistry project. Jackie’s classmate spent 2 hrs less time working on the project than Jackie. How long did Jackie work on the project?

Respuesta :

iquintana iquintana

11-10-2021

Answer:

x = 11

Step-by-step explanation:

x + (x - 2) = 20

2x - 2 = 20

2x - 2 + 2 = 22 + 2

2x = 22

x = 11

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