17 At an amusement park, only 18 people are allowed on a ride at the

same time. There are 157 people waiting in line. How many groups

of riders will there be?

Divide (157 riders) by (18 riders/ride): 8.72 groups of 18 riders. This can be interpreted as "8 full groups of 18 riders PLUS 0.72(18 groups), or 12.96 riders" which rounds off to "8 full groups of 18 riders PLUS just under 13 riders in an additional group"

In summary:

8 full groups of 18 riders,

plus, additionally,

less than a full group of riders, namely, 13 riders.

Note that 8(18) + 13 = 157. This checks out correctly.

17 At an amusement park, only 18 people are allowed on a ride at the same time. There are 157 people waiting in line. How many groups of riders will there be?

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17 At an amusement park, only 18 people are allowed on a ride at the

same time. There are 157 people waiting in line. How many groups

of riders will there be?