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# Decimals in Use

## Paychecks and Expenses

### Sample Problem

Luis works 2 hours a day, 4 days a week. How many hours a week does Luis work?

2 hours/day x 4 days/week = 8 hours/week. 8 hours? Guess who will not be jumping into a roomful of money? Luis.

## Prices and Counting Change

### Sample Problem

Nathan buys a sandwich for \$6.50. It's one of those "gourmet" sandwiches, which just means that it's a regular turkey sandwich but comes with a packet of dijon mustard. Anyway, he pays with a \$10 bill. Assuming the cashier doesn't screw things up, how much change does Nathan get?

\$10 - \$6.50 = \$3.50, so Nathan gets \$3.50 in change.

## Tipping

### Sample Problem

Kate and Jim ate at a restaurant. The total bill was \$56.80. They want to leave only a 10% tip because their server spilled two drinks and one plate of food into their laps. How much of a tip should they leave?

.