The amount of work done by Kalon in an hour is equal to 1/4. This is based on his time to finish the job. Letting x be the number of hours Marna can finish the job alone will let her finish 1/x of the job in an hour. If their rates are added together and multiplied by the number of hours they worked together, the product should be one whole job.
(1/4 + 1/x)(1 5/7) = 1
The value of x is 3. Therefore, it will take 3 hours for Marna to clean the chimney alone.
Answer: b or Rebecca's answer
Step-by-step explanation: brainlest please
7-3x=4(2+x)<--Distribute
7-3x=8+4x
-7...... -7
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-3x=1+4x
-4x ....-4x
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-7x=1
/-7 /7
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x=-1/7
Answer:
-2 but i may be wrong i am sorry if i am wrong
Step-by-step explanation:
