One afternoon, Kassim's sandwich shop sells 15 sandwiches in 45 minutes. If the shop continues to sell sandwiches at the same rate, about how many sandwiches will the shop sell in 3 hours?

Question

Julia Adams · Accepted Answer

#60" sandwiches"#

There are #3xx60" minutes" =180" minutes in 3 hours"#

and #180/45=4#

Thus the shop will sell 4 times as many sandwiches in 3 hours as they sell in 45 minutes at the same rate.

#rArr4xx15=60" sandwiches"#

Nathan Axel · Answer

undefined To find out how many sandwiches the shop will sell in 3 hours, first, we calculate the rate of sandwiches sold per minute:

$$ \text{Sandwiches sold per minute} = \frac{15}{45} = \frac{1}{3} \text{ sandwiches per minute} $$

Then, to find out how many sandwiches the shop will sell in 3 hours (which is 180 minutes), we multiply the rate of sandwiches sold per minute by the number of minutes in 3 hours:

$$ \text{Sandwiches sold in 3 hours} = \left(\frac{1}{3} \text{ sandwiches per minute}\right) \times 180 \text{ minutes} $$

$$ = 60 \text{ sandwiches} $$

Therefore, if the shop continues to sell sandwiches at the same rate, it will sell about 60 sandwiches in 3 hours.