00:01
Alright, our starting point with this question is to define our variables.
00:06
And our variables are defined in the question, how much of each should be used to make a 14 -currant gold bracelet, weighing 300? if we are to mix an 18 current gold, 11 -12 -current gold, how much of each would we require to make a 58 -bred? percent current gold.
00:34
So, let the 75 percent current be equal to x and the 50 percent gold equals to y.
01:04
And we also want to make something out of it, which is 300 pounds.
01:18
We are measuring it in grams actually.
01:22
So 300 grams.
01:25
So once we define there are those that we are very sure of, if we add the 75 % quantity, plus the 50 % quantity, we will get 300 grams.
01:43
So whatever that x is and that y is, we'll get 300.
01:48
Then we also have another one.
01:55
We want a 75 % of x plus a 50 % of y to give us a 58%.
02:12
Now i want to wait this one aside, 58 % of 300.
02:19
We will get about 174...