System of Linear Equations-1

System of linear equations (Grade 10 Math) Word Problems

1. Sara is 5 years older than Jane. The sum of their ages is 35. How old is each?


2. Sarah has $20 in nickels and dimes. She has a total of 160 coins. How many of each does she have?


3. A person invests $4,000 in two accounts, one yielding 4% interest and the other 6% interest. The total annual interest is $220. How much is in each account?


4. A chemical solution contains 20% salt. How many liters of a 30% solution must be added to 5 liters of a 10% solution to make a 25% solution?


5. Alex is driving from City A to City B, which is 240 miles away. He drives the first 120 miles at 60 mph and the rest at 40 mph. How long does the trip take?

Making Graphs- bar graphs, histograms and line graphs

Part A: Bar Graphs

1. Create a bar graph to represent the number of books read by students in a class. Use the following data:

   Student	Books Read
   Alice	5
   Bob	7
   Cindy	4
   David	6
   Emily	8