Answer:
$16.20 30% of 50 is 15 so divide 4 in the mix
Answer:
6
Step-by-step explanation:
Given,
...(i)
Differentiating w.r. to x.
From equation (1)
Now, at the point (1,3)
Volume of first oil = A, volume of second oil = B, volume of mixture = M
A = ?, B = 4l, M = A + B
40%A + 25%B = 30%M
40%A + 25%4l = 30%(A+4l)
<span>40%A + 25%4l = 30%A + 30%4l
40A + 100l = 30A + 120l
40A - 30 A = 120l - 100l
10A = 20l
A = 2l
</span>
Answer: 2 litres of 40% oil dressing.
Also note: That's an approximation, because the volumes are not strictly additive. For example: mixing 50ml pure ethanol with 50ml water will give you about 95ml of mixture. To get an accurate answer, you'd have to measure the volume of the final mixture and then divide your total oil content by that<span>.</span>
Neither of those work for that equation
The first and last choices are the only ones whose angles total 180 degrees, so they're the only possible triangles.
