Paul M. answered • 08/08/18

Learn "how to" do the math and why the "how to" works!

Let B = # of gummy bears and D = # of gum drops

Translate English into math

B + D = 60

7.25B + 9.25D = 60*8.70

It is a toss up as to which is the easiest way to solve this system; I choose to substitute D = 60 - B into the 2nd equation

725B + 925(60 - B) = 52200

725B + 55500 - 925B = 52200

Collect terms

200B = 3300

B = 16.5 and D = 43.5

You should take these answers and make sure they solve the original problem as stated.