Answer:
Mrs. Hong originally had 900 ml of milk
Explanation:
The complete question is in the attached image
Assume that the amount of milk Mrs. Hong originally had was x ml
We are given that:
1- She used [tex]\frac{1}{6}[/tex] of it to bake the waffles, therefore:
Amount used in baking waffles = [tex]\frac{1}{6}x[/tex] ml
2- She used 300 ml to bake a pie
3- Amount left is half the original amount, therefore:
Amount left = [tex]\frac{1}{2}x[/tex] ml
We know that:
Total amount = amount used in waffles + amount used in pie + amount left
Substitute with the givens and solve for x:
Total amount = amount used in waffles + amount used in pie + amount left
[tex]x = \frac{1}{6}x + 300 + \frac{1}{2}x\\ \\x-\frac{1}{6}x-\frac{1}{2}x = 300\\ \\\frac{1}{3}x = 300\\ \\x = 300*3 = 900 ml[/tex]
This means that:
She originally had 900 ml of milk
Hope this helps :)
