00:00X grams of water contains Y grams of water and Z grams of fat.
00:02By mixing Y/X in the ratio of 2/3 and Z/Y in the ratio of 1/4, a 550 gram mixture is formed.
00:09Dough is obtained.
00:10This indicates the amount of fat in the dough, folks.
00:13Guys, I'd like to take a look at these ratios right away.
00:16So, Y divided by X is 2/3 and Z divided by Y is 1/4, right guys?
00:23Yes. So, did you guys leave?
00:26Can our Y be both 2 and 4 here? No.
00:28Let's adjust this to be a solid structure then.
00:31I suggest we make Y a 4, guys.
00:33Okay then, I'm expanding this section by 2, guys.
00:36Isn't it?
00:37So our new proportions and ratios are Y divided by X equals 4 divided by 6 and Z divided by Y equals 1.
00:46It becomes 4/4.
00:48Now, friends, I'm suggesting we use 6K instead of X, because aren't these two floors, friends?
00:55It is equal to the constant of proportionality.
00:56So, if X equals 6 times K, Y equals 4 times K, then let Z equal K.
01:03Because it's 1 times K, folks.
01:06I'm multiplying by K's as well.
01:09Now that we've found that, let's move on to our next question, friends.
01:13By mixing the ratios, you get 550 grams of 6K, 4K, and more friends, 6K plus 4K plus K.
01:20Doesn't that equal 11K?
01:21Yes.
01:22That equals 550 grams of our mixture.
01:24If we divide both sides by 11, what do we get from K?
01:29We find it to be 50.
01:31What were they asking of us?
01:32D represents the amount of fat in the dough.
01:34What was our oil?
01:35It was Z.
01:35That's also equal to K.
01:36Z equals K.
01:37We say that's equal to 50 grams.
01:41Yes.
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