Answer
30 pounds of M and M's and 20 pounds of trail mix
Work Step by Step
We use the information to create the following equations:
$t+m=50$
$ \frac{1.50t+2.00m}{50}=1.80$
We substitute:
$ \frac{1.50(50-m)+2.00m}{50}=1.80$
Now, we use PEMDAS, a method for simplification. This acronym reminds us that we must first address parentheses, and then exponents. Next, we address multiplication and division, going from left to right. Lastly, we simplify addition and subtraction from left to right. This gives:
$m = 30$
We plug back into the first equation to find:
$t = 20$