This problem is a mathematics olympiad problem for elementary school. The radius of each circle in the picture below is one unit.
In everyday conversation, people use word phrases that express mathematical ideas. As you read the following conversation, notice the use of mathematical expressions.
“Hi Frank. How was the car was ?” Fabulous, Gina ! We made twice as much maoney as we did last year. We washed 80 more cars than last year!” Great ! That means we’ll be able to lower the cost of the band trip by $2 per person.”
1. Identify the mathematical phrases in Frank and Gina’s conversation.
Even though you know how much money the band made last year, you can express the amount the made this year by writing expression a variable expression.