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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

A girl, A, took 5 hours to paint a wall. Her friend, B, took twice as much time as A to paint a wall of the same dimensions. How long would the task have

Number of hours to finish the task if the friends worked together: x Number of hours for Friend A to finish the task: 5 Number of hours for Friend B to finish the task: 2(5) = 10

Equation for Combined Work (task): 1/5 + 1/10 = 1/x

LCM (Least Common Multiple): 10x

Multiply each term by 10x, then simplify: (10x)(1/5) + (10x)(1/10) = (10x)(1/x) 2x + x = 10 3x = 10 3x/3 = 10/3 x = 10/3 or 3 ¹/₃ hours

ANSWER: It would take 3 ¹/₃ hours for the two friends to finish the task of painting the wall of the same dimensions.