2 years ago

6th grade math

Mathematics

2 answers:

cricket20 [7]2 years ago

8 0

Answer:

She will replace both at the same time in 18 months

Step-by-step explanation:

The first thing you have to do to find when she will change them at the same time, is to try with multiples of both, untill they match.

Hall Closet = every 9 months

Air Filter = every 6 months

1) 9-18-27-36-45

2)6-12-18

We find that in the 18th month he will change both of them.

zubka84 [21]2 years ago

5 0

They will both be replaced the 18th month.

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