At a college, the cost of tuition increased by 13%. Let c be the former cost of tuition. Use the expression c+0.13c for the new cost of tuition. Write an equivalent expression by combining like terms. What does your equivalent expression tell you about how to find the new cost of tuition?
The expression c + 0.13c can be simplified and combined like terms as 1.13c.
This equivalent expression tells us that the new cost of tuition can be found by multiplying the former cost of tuition, c, by 1.13.