I think it’s the first one.
Hope this helps :)
2 divided by 3 is 66.7%. So the fraction would be 2/3
1. y=6
2. y=-12
Step-by-step explanation:
<u>1) If y varies inversely as x, and y=3 as x = -2, find y for the x value of -1.</u>
It is given that
y varies inversely as x
IT will be written as:
y∝1/x
Removing the proportionality symbol
y=k/x
Given
y=3 , x=-2
Putting the values
3=k/-2
k=3*-2 = -6
The equation will be:
y=-6/x
So,
When x=-1
![y=\frac{-6}{-1}\\y=6](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B-6%7D%7B-1%7D%5C%5Cy%3D6)
<u>2) If y varies directly as x, and y=15 as x=-3, find y for the x value of 4</u>
y is directly proportional to x
y∝x
y=kx
Given
y=15, x=-3
Putting the values
![y=kx\\15=-3k\\k=\frac{15}{-3}\\k=-5\\The\ equation\ will\ be:\\y=-3xNow,\\x=4\\y=-3(4)\\y=-12](https://tex.z-dn.net/?f=y%3Dkx%5C%5C15%3D-3k%5C%5Ck%3D%5Cfrac%7B15%7D%7B-3%7D%5C%5Ck%3D-5%5C%5CThe%5C%20equation%5C%20will%5C%20be%3A%5C%5Cy%3D-3xNow%2C%5C%5Cx%3D4%5C%5Cy%3D-3%284%29%5C%5Cy%3D-12)
Hence,
1. y=6
2. y=-12
Keywords: Proportion, Variation
Learn more about proportion at:
#LearnwithBrainly
Answer:
3126
Step-by-step explanation: f(1)=6 and f(n)=5f(n-1)-4. This means that next number is 5 times previous number minus 4.
f(2)=5f(1)-4 =5x6-4 = 30-4 = 26
f(3)=5f(2)-4 =5x26-4 = 130-4 = 126
f(4)=5f(3)-4 =5x126-4 = 630-4 = 626
f(5)=5f(4)-4 =5x626-4 = 3130-4 = 3126
The ratio is 75% (3/4) so the answer to the question is 27 chocolate chip cookies