Answer: x=16
Step-by-step explanation: multiply both sides by 4 , 4*4 that should get you to x=16
hope this helps
It's can be 5×10^4
5×10^4= 5×10000=50,000
Answer:
Volume of B=62800![cm^3](https://tex.z-dn.net/?f=cm%5E3)
Step-by-step explanation:
We are given
Height = 50 cm
Radius of A=16cm
Radius of Cylinder B is 25% more than that of A
Radius of B = 16 +
cm =16+4= 20 cm
Volume of cylinder B = ![pi*r^2*h](https://tex.z-dn.net/?f=pi%2Ar%5E2%2Ah)
=![3.14 * (20)^2*50](https://tex.z-dn.net/?f=3.14%20%2A%20%2820%29%5E2%2A50)
=62800![cm^3](https://tex.z-dn.net/?f=cm%5E3)
The measures of angles ADB and BDC add up to the measure of angle ADC:
![134^\circ=(5x+4)^\circ+(7x-2)^\circ](https://tex.z-dn.net/?f=134%5E%5Ccirc%3D%285x%2B4%29%5E%5Ccirc%2B%287x-2%29%5E%5Ccirc)
![\implies134=12x+2](https://tex.z-dn.net/?f=%5Cimplies134%3D12x%2B2)
![\implies12x=132](https://tex.z-dn.net/?f=%5Cimplies12x%3D132)
![\implies x=11](https://tex.z-dn.net/?f=%5Cimplies%20x%3D11)
Then
![m\angle BDC=(7\cdot11-2)^\circ=\boxed{75^\circ}](https://tex.z-dn.net/?f=m%5Cangle%20BDC%3D%287%5Ccdot11-2%29%5E%5Ccirc%3D%5Cboxed%7B75%5E%5Ccirc%7D)
If you read 4 pages in 6 minutes, that means you read 2/3 of a page each minute. if you need to read 6 pages, then you divide 6 by 2/3 to get 9 minutes.