0.69 can be expressed as a fraction.
69 / 100
The fraction 69 / 100 cannot be simplified anymore. So that's already the simplest form.
So the fraction is 69 / 100.
Step-by-step explanation:
![\frac{12 {x}^{4} }{4 {x}^{16} } = \frac{4 \times 3}{4 \times {x}^{16 - 4} } = \frac{3 }{ {x}^{12} } \\ \\ so \: \frac{3 }{ {x}^{12} } \: is \: equivalent \: fraction \: \\ of \: \frac{12 {x}^{4} }{4 {x}^{16} } \\](https://tex.z-dn.net/?f=%20%5Cfrac%7B12%20%7Bx%7D%5E%7B4%7D%20%7D%7B4%20%7Bx%7D%5E%7B16%7D%20%7D%20%20%3D%20%20%5Cfrac%7B4%20%5Ctimes%203%7D%7B4%20%5Ctimes%20%20%7Bx%7D%5E%7B16%20-%204%7D%20%7D%20%20%3D%20%20%5Cfrac%7B3%20%7D%7B%20%7Bx%7D%5E%7B12%7D%20%7D%20%20%5C%5C%20%20%5C%5C%20so%20%5C%3A%20%5Cfrac%7B3%20%7D%7B%20%7Bx%7D%5E%7B12%7D%20%7D%20%5C%3A%20is%20%5C%3A%20equivalent%20%5C%3A%20fraction%20%5C%3A%20%20%5C%5C%20of%20%5C%3A%20%20%5Cfrac%7B12%20%7Bx%7D%5E%7B4%7D%20%7D%7B4%20%7Bx%7D%5E%7B16%7D%20%7D%20%5C%5C%20)
Answer:
- 20 seconds
- 70, 30, 20
Step-by-step explanation:
1. From the first floor to the 4th floor is a distance of 3 floors. From the first floor to the 16th floor is a distance of 15 floors, a distance that is 5 times as far as the first trip. We expect the second trip to take 5 times as long, or ...
(4 s) × 5 = 20 s
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2. The smallest and largest ratio number sum to 2+7=9. That sum exceeds twice the remaining ratio number by 9-2×3 = 3. Since this difference represents a difference of 30, each of the original numbers must be 30/3 = 10 times its corresponding ratio number.
The three numbers are 7×10 = 70, 3×10 = 30, and 2×10 = 20.
<em>Check</em>
(70 +20) -2×30 = 30 . . . true
Answer:
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