At a college, the cost of tuition increased by 10%. Let b represent the former cost of tuition. Use the expression b+0.10b for the new cost of tuition.

Question

Part A - write an equation expression for the new cost of tuition.

Part B - what does your equivalent expression tell you about how to find the new cost of tuition?

Answer 1

new cost = b +.1b = (1+.1)b = 1.1b = 110% of the old cost of tuition

take the old cost and multiply it by 1.1 to get the new cost