Question

Casey has n nickels. Megan has 4 times as many nickels as Casey has. Write an expression for the total number of nickels Casey and Megan have. Then simplify the expression.

Answer 1

n = number of nickels casey has

n is simply a placeholder for a number

4*n = number of nickels Megan has

whatever number Casey has, multiply it by 4 to get Megan's number

We add n and 4n to get 5n. We can think of it as 1n+4n = (1+4)n = 5n

Or we can think of it as 1 nickel + 4 nickels = 5 nickels

The final simplified expression is 5n

Answer 2

Explanation:

n(4)=4n

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