Question

in complete sentences, explain the process in which this equation would be solved. “Mr Crenshaw can grade one set of papers in 10 minutes while it takes Mr. Aguirre 15 minutes to grade one set of papers (because he is easily distracted) How long will it take to grade one set of papers if Mr. Crenshaw and Mr Aguirre work together?

Answer 1

Answer:

6 minutes

Step-by-step explanation:

Mr Crenshaw checks at a rate of 1/10 and Mr. Aguirre checks at a rate of 1/15.

If they work together, they will be checking at a combined rate of:

1/10 + 1/15 = [3(1) + 2(1)]/30

= 5/30 = 1/6

Their combined rate is 1/6 which means they check one set in 6 minutes