Users receive reward points for every dollar charged to their credit card. Different numbers of points are received for different categories of purchases, as shown below.
CategoryApp storeUtilitiesOther chargesPoints per dollar spent531
Suppose a certain individual spent $50 on the app store, $230 on utilities, and $450 on other items. If the individual charged these amounts to
their credit card, which is closest to the percentage
of the reward points in these three categories would they receive from utilities?
We can calculate the number of points an individual would receive from their purchases.
CategoryApp storeUtilitiesOther chargesPoints per dollar spent531$ Spent$50$230$450Points received5⋅50=2503⋅230=6901⋅450=450
The percentage of points from utilities is:
total pointspoints from utilities
=250+690+450690
=1390690
≈0.496
=50%