Marcy loves to do puzzles. Last week, she spent 2 hours putting together a puzzle with 300 pieces. This week, she wants to put together a puzzle with 450 pieces. If she keeps the same pace, how many hours should it take Marcy to put the puzzle together this week?

We know that it takes Marcy 2 hours to finish a 300 piece puzzle. When we divide each part in half we get it takes Marcy 1 hour to do a puzzle that is 150 pieces. Then, we can add those parts together, getting 450 puzzle pieces, and 3 hours.

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ewomazinoade ewomazinoade · Answer 2 · 2021-12-09T11:57:49+01:00

The number of hours it would take Marcy is 3 hours.

The first step is to determine the average speed with which Marcy putting the puzzles together.

Average speed = total pieces put together / total time

300 / 2 = 150 pieces / hour

In order to determine the hours it would take to put together a 450 pieces puzzle, divide 450 by the average speed

450 / 150 = 3 hours.

To learn more about average speed, please check: brainly.com/question/9834403