Answer:
1. discount = $5; percent discount = 25%
2. $38.40
Step-by-step explanation:
1. Original price: $20
Price paid: $15
discount = original price - price paid
discount = $20 - $15 = $5
The discount was $5.
If you need the percent discount, then you need to find:
$5 is what percent of $20?
$20 is the whole amount, so it's 100%. $5 is the part. We need to know what percent of the whole $5 is.
whole/part = 100/x = 20/5
100/x = 20/5
20x = 5 * 100
20x = 500
x = 25
The percent discount is 25%.
2. Dinner price: $32
Tip: 20% of price
tip = 20% of $32 = 20% * $32 = 0.2 * 32 = $6.40
total price = price of dinner + amount of tip
total price = $32 + $6.40 = $38.40
