Question

Liz wanted to buy a new book. When she checked the price last week, it was $16. This week, the same book was listed for $20. Write and solve an equation to show how much the book increased in price.

20 = p − 16; p = $36
20 = p + 16; p = $4
16 + p = 36; p = $20
2p = 20; p = $10

Answer 1

The book's price increased by $4, calculated by subtracting the initial price from the new price, yielding the equation 16 + p = 20, where 'p' represents the increase.

Step-by-step explanation:

To determine how much Liz's book increased in price, we can establish a simple equation. The initial price of the book was $16, and the new price is $20. The increase in price can be represented by 'p' in the equation: 16 + p = 20. To solve for 'p', we will subtract the initial price from the new price:

1. 20 - 16 = p
2. p = 4

So, the book's price increased by $4.

Answer 2

Step-by-step explanation:

20=p=16

therefore p=$4