A money box contains only 10-cent and 20-cent coins. There are 33
coins with a total value of $4.60.
How many coins of each?

Examine this system of equations. what integer should the second equation be multiplied by so that when the two equations are added together, the x term is eliminated? 3/4x+1/7y=6 1/8x-3/5y=16

Out of the 180 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking? 72% 40% 54% 98%

In his stamp album ,jamal has 48 new stamps and 72 used stamps. which ratio can be represented by 3/5