7. Angela has $21.40 in dimes and quarters. If she has a total of 100 coins, how many of each coin does she
have?
a) Define the variables
b) Write a system of linear equations that represents this situation.
8. The length of a rectangle is 4 feet longer than its width. The perimeter is 32 feet. Find the length and width
of the rectangle.
a) Define the variables
b) Write a system of linear equations that represents this situation.
9. The length of a rectangle is 5 more than twice the width. The perimeter is 130 cm. Find the length and
width of the rectangle.
a) Define the variables
b) Write a system of linear equations that represents this situation.