OK 2x + 1 = 5x/3 ; the key here is to get rid of the fraction by multiplying both sides by 3 6x + 3 = 5x ; now subtract 6x from both side 3 = -x -3 = x Proof 2(-3) + 1 = 5(-3)/3 ?? -6 + 1 = -5?? -5 = -5
Set up a proportion:
10 miles - x hours
m miles - 1 hour
![\frac{10}{x}=\frac{m}{1} \\ \\ m=\frac{10}{x}](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7Bx%7D%3D%5Cfrac%7Bm%7D%7B1%7D%20%5C%5C%20%5C%5C%0Am%3D%5Cfrac%7B10%7D%7Bx%7D)
The man walks 10/x miles in one hour.
Answer:
There are two complex roots:
============
<h3>Given equation:</h3>
The standard form is:
Compared we can find values of the coefficients and the constant:
Substitute these values into quadratic formula:
![x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a}](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B-b%5Cpm%5Csqrt%7Bb%5E2-4ac%7D%20%7D%7B2a%7D)
and work out roots:
![x=\dfrac{-(-6)\pm\sqrt{(-6)^2-4*1*10} }{2*1}=x=\dfrac{6\pm\sqrt{36-40} }{2}=\dfrac{6\pm2\sqrt{-1} }{2}=3 \pm i](https://tex.z-dn.net/?f=x%3D%5Cdfrac%7B-%28-6%29%5Cpm%5Csqrt%7B%28-6%29%5E2-4%2A1%2A10%7D%20%7D%7B2%2A1%7D%3Dx%3D%5Cdfrac%7B6%5Cpm%5Csqrt%7B36-40%7D%20%7D%7B2%7D%3D%5Cdfrac%7B6%5Cpm2%5Csqrt%7B-1%7D%20%7D%7B2%7D%3D3%20%5Cpm%20i)
For example:
2-1.22
2.00
- 1.22
_____
0.78
Answer:
Step-by-step explanation:
The minute hand rotates full scale = 360° in 1 hour = 60 minutes
<u>In one minute it travels:</u>
The hour hand rotates full scale = 360° in 12 hours = 12*60 minutes
<u>In one minute it travels:</u>