Answer:
Step-by-step explanation:
Five equivalent ratios:
7:8 = 14:16
= 21:24
= 70:80
= 49:56
= 35:40
Answer:
15
Step-by-step explanation:
Cross multiply
3 times 20 = 60
4 times x = 4x
now your left with
60= 4x
divide 4 on both sides
15 = x
Answer:
Option A
Step-by-step explanation:
The complete question is shown in the attachment.
Note that: ![(f\cdot g)(x)=f(x)\cdot g(x)](https://tex.z-dn.net/?f=%28f%5Ccdot%20g%29%28x%29%3Df%28x%29%5Ccdot%20g%28x%29)
We need to multiply all the functions to see which of them satisfy the given criteria.
Option A
![x^2\cdot \frac{1}{x} =\frac{x^2}{x}=x](https://tex.z-dn.net/?f=x%5E2%5Ccdot%20%5Cfrac%7B1%7D%7Bx%7D%20%3D%5Cfrac%7Bx%5E2%7D%7Bx%7D%3Dx)
Option B
![\frac{2}{x} \cdot \frac{2}{c} =\frac{4}{cx}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7Bx%7D%20%5Ccdot%20%5Cfrac%7B2%7D%7Bc%7D%20%3D%5Cfrac%7B4%7D%7Bcx%7D)
Option C
![\frac{x-2}{3} \cdot 2-3x =\frac{-3x^2+8x-4}{3}](https://tex.z-dn.net/?f=%5Cfrac%7Bx-2%7D%7B3%7D%20%5Ccdot%202-3x%20%3D%5Cfrac%7B-3x%5E2%2B8x-4%7D%7B3%7D)
Option D
![\frac{1}{2x-2} \cdot \frac{1}{2x+2} =\frac{1}{4(x^2-1)}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2x-2%7D%20%5Ccdot%20%5Cfrac%7B1%7D%7B2x%2B2%7D%20%3D%5Cfrac%7B1%7D%7B4%28x%5E2-1%29%7D)
The correct choice is A
P = 12.
So,
15(12) + 70V < 400
V < (400 - 180)/17
V <3.14
So the max number of video can fit is 3.