Question

When ringing up a customer, a cashier needs 6 seconds to process payment as well as 1

second to scan each item being purchased. If it takes 20 seconds to ring up a customer,
how many items are being purchased?

Answer 1

14

Explanation:

to process payment = 6 sec

each item = 1 sec

total = 20 sec

From this information, we can formulate an equation where x = number of items being purchased.

`6+1(x) = 20`

`x=20-6\\x=14`

Answer 2

14 items

Explanation:

20 seconds minus the six it takes to process purchase is 14 and if i takes 1 second to scan each item 14 times 1 is 14