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pls help quickly

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A machine prints 1500 newspapers in 45 minutes. How many does it print in 12 hours ?

Guest May 30, 2017

#1
+4155
+2

1 hour = 60 minutes        Multiply both sides of this equation by 12

12 hours = 720 minutes

Now we can set up this equation:

$$\frac{1500 \, \text{ papers}}{45\,\text{ mins}}=\frac{x}{720\,\text{ mins}}$$          and solve for x by multiplying both sides by 720 mins.

$$720\,\text{ mins}\,*\,\frac{1500 \, \text{ papers}}{45\,\text{ mins}}=x \\~\\ 24,000\,\text{ papers}=x$$

hectictar  May 30, 2017
Sort:

#1
+4155
+2

1 hour = 60 minutes        Multiply both sides of this equation by 12

12 hours = 720 minutes

Now we can set up this equation:

$$\frac{1500 \, \text{ papers}}{45\,\text{ mins}}=\frac{x}{720\,\text{ mins}}$$          and solve for x by multiplying both sides by 720 mins.

$$720\,\text{ mins}\,*\,\frac{1500 \, \text{ papers}}{45\,\text{ mins}}=x \\~\\ 24,000\,\text{ papers}=x$$

hectictar  May 30, 2017

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