In the last few lessons, you have been working on identifying the components given in a word problem and identifying the component you are being asked to find. You worked on some examples in the previous lesson. Let’s work on some additional examples.
Nathaniel took a friend out to dinner. The bill came to $57.00. He decided to leave a 20% tip. What was the total amount he spent on dinner?
The first step is identifying the components of the problem.
WHOLE = dinner cost PERCENT = tip percentage PART = tip amount
PART = WHOLE x PERCENT
57 x .2 = 11.40
11.40 would be the PART (the tip).
To find the total amount spent for the dinner, you need to add the cost of the dinner and the tip.
57.00 + 11.40 = $68.40
Let’s look at another example.
Sarah wanted to buy a jacket priced at $56.00. She had a coupon that would save her 15%. What would the jacket cost after applying the coupon?
WHOLE = jacket price PERCENT = coupon amount PART = savings/discount
PART = WHOLE x PERCENT
56 x .15 = 8.40
The final price after applying the discount is the original price – the discount
56 – 8.40 = $47.60