Question

The membership in the math club at Rogers Junior High increased by 5% from last year to this year. The president of the math club used the following expression to find the number of members in the club this year.

m + m(0.05)
Which of the following is another expression that could be used to get the same results?

Answer 1

Explanation:

If the membership increased by 5%, that means that 5% was added to the 100% that was already there, making this a total increase of 105%. In decimal form, this is 1.05, so another way to write that expression would be m(1.05)