"Note how for each (x,y) pair of points given we see that x*y = 60
For instance, the point (4,15) has x = 4 and y = 15 so x*y = 4*15 = 60
Another example: (x,y) = (6,10) means x = 6 and y = 10, so x*y = 6*10 = 60
The fact that this is true for ALL of the points shown indicates we have an inverse variation of the form x*y = k where k = 60 in this case.
Therefore, the answer is B.) An inverse function is the best model because the products of corresponding x- and y-values are equal."
Answer:
B.21.3 is the correct answer
Step-by-step explanation:
1/2*x+1/4*x=16
x/2+x/4=16
2x+x/4=16
3x/4=16
3x=16*4
3x=64
x=21.3
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Answer:
80 pages
Step-by-step explanation:
Given:
Number of pages printed = 5493
Number of booklets made = 68
Let each booklet use 'x' pages.
So, pages used by 68 booklets is given by unitary method and is equal to:
![=68\times x\\=68x](https://tex.z-dn.net/?f=%3D68%5Ctimes%20x%5C%5C%3D68x)
Now, total number of pages are 5493.
Therefore, the pages used by the 68 booklets should be less than or equal to the total number of pages available. So,
![68x=5493\\\textrm{Dividing both sides by 68,we get:}\\x=\frac{5493}{68}=80.8\approx 80(\textrm{As number of pages can't be in decimal})](https://tex.z-dn.net/?f=68x%3D5493%5C%5C%5Ctextrm%7BDividing%20both%20sides%20by%2068%2Cwe%20get%3A%7D%5C%5Cx%3D%5Cfrac%7B5493%7D%7B68%7D%3D80.8%5Capprox%2080%28%5Ctextrm%7BAs%20number%20of%20pages%20can%27t%20be%20in%20decimal%7D%29)
Therefore, the number of pages in each booklet is 80.
Whatever% of anything is just (whatever/100) * anything.
therefore, if an item has been discounted by 40%, the discounte is that 40%, what is 40% of the price "p"? (40/100) * p or 0.4p.