Becky's mom wants to buy a new tv that cost $1,500 and a dvd player that cost $300. she has $2,000. if she buys groceries for $150, will she have enough money for the tv and the dvd player? explain to a friend.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.