It takes anjali eight minutes to wax a floor. shayna can wax the same floor in 12 minutes. find how long it would take them if they worked together.

Step-by-step explanation:

The rates of work are additive. That is, the total rate when Anjali and Shayna work together is equal to the sum of the individual rates when they work separetely.

1. Rate of work of Anjali:

2. Rate of work of Shayna:

3. Rate of work if they worked together:

                - least common denominator: 2³ · 3 = 24

                - r = 1/8 + 1/12 = 3/24 + 2/24 = 5/24 = 0.2083 ...

                - that mean 5 floors/24 minute = 0.2083... floors/minute

4. Time to wax a floor if they worked together

                - time = 1 / r = 24/5 = 4.8 minutes per floor.

if this is really you s much. i only have 3 points left and i have 2 questions to ask

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step-by-step explanation: