Please help I need a quick answer and I am so confused

Question

How many pounds of $1.60/pound sour patch kids must be added to $1.80/pound candy corn to make a mixture of 100 pounds which cost $1.75/pound. Let k= pounds of sour patch kids and c= pounds of candy corn. The answer must be a system of equations.

Thank you :)

Answer 1

1.6k + 1.8c = 1.75m

k + c = m = 100

1.6k + 1.6c = 1.6m

subtract

.2c = .15m

c = .75m = 75 lbs

k = m- .75m = .25m = 25 lbs

1.8-1.75 = .05

1.75-1.6 = .15

.15/.05 = 3 times as much c as k to get 1.75m

75 is 3 times 25