Question

Write a solution about today's sales for the following systems of the equations and then determine how much of each menu item you sold: e+f=48 and e=3f

Answer 1

EXPLANATION

Given the system of equation:

(1) e + f = 48

(2) e = 3f

Substituting e=3f into e + f=48:

3f + f = 48

Adding similar terms:

4f = 48

Dividing both sides by 4:

f = 48/4

Simplifying:

f = 12

Replacing f=12 in e + f =48

e + 12 = 48

Subtracting -12 to both sides:

e = 48 - 12

e = 36

Answer: There has been sold 12 items of f and 36 items of e.