Q:

A copy machine makes 60 copies per minute A second copy machine makes 80 copies per minute. The second machine starts making copies 2 minutes afterthe first machine starts Both machines stop making copies 8 minutes after the first machine started. Together, the 2 machines made how many copies?

Accepted Solution

A:
Together, the 2 machines made 960 copiesStep-by-step explanation:There are two copy machinesThe first copy machine makes 60 copies per minuteThe second copy machine makes 80 copies per minuteThe second machine starts making copies 2 minutes after  the first machine startsBoth machines stop making copies 8 minutes after the first machine startedWe need to find that together they made how many copies ∵ The rate of first machine is 60 copies per minute∵ Both machines stop making copies 8 minutes after the first    machine started∵ The first machine worked for 8 minutes∴ The first machine made = 60 × 8 = 480 copies∵ The second machine started 2 minutes after the first machine starts∵ Both machines stop making copies 8 minutes after the first    machine started∴ The second machine worked for = 8 - 2 = 6 minutes∵ The rate of second machine is 80 copies per minute∴ The second machine made = 80 × 6 = 480 copies∴ The total copies of them = 480 + 480 = 960 copiesTogether, the 2 machines made 960 copiesLearn more:You can learn more about the word problems in brainly.com/question/6569012#LearnwithBrainly