Answer:
Senny: 45 mph; Farouk: 35 mph
Step-by-step explanation:
Their combined speed is 520 mi/(6.5 h) = 80 mi/h. Senny's speed is half the sum of this and the difference of 10 mi/h:
... (80 mi/h + 10 mi/h)/2 = 45 mi/h
Farouk's speed is 10 mi/h less:
... 45 mi/h - 10 mi/h = 35 mi/h
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<em>Comment on Sum and Difference Problems</em>
If two numbers <em>a</em> and <em>b</em> have a sum of <em>s</em> and a difference of <em>d</em>, you can write equations ...
Adding these two equations gives ...
... 2a = s + d
Dividing this by 2 gives
... a = (s + d)/2 . . . . . . the formula we used above
Answer:
![-3^{\circ \:}x\left(-3\right)=\left(-3\right)\cdot \:14 : x = \frac{840}{180^{\circ \:}}](https://tex.z-dn.net/?f=-3%5E%7B%5Ccirc%20%5C%3A%7Dx%5Cleft%28-3%5Cright%29%3D%5Cleft%28-3%5Cright%29%5Ccdot%20%5C%3A14%20%3A%20x%20%3D%20%5Cfrac%7B840%7D%7B180%5E%7B%5Ccirc%20%5C%3A%7D%7D)
Decimal Form:
![x = -267.38030...](https://tex.z-dn.net/?f=x%20%3D%20-267.38030...)
Step-by-step explanation:
![-3^{\circ \:}x\left(-3\right)=\left(-3\right)\cdot \:14](https://tex.z-dn.net/?f=-3%5E%7B%5Ccirc%20%5C%3A%7Dx%5Cleft%28-3%5Cright%29%3D%5Cleft%28-3%5Cright%29%5Ccdot%20%5C%3A14)
Remove Parentheses: ![(-a) = -a](https://tex.z-dn.net/?f=%28-a%29%20%3D%20-a)
![-3^{\circ \:}x\left(-3\right)=-3\cdot \:14](https://tex.z-dn.net/?f=-3%5E%7B%5Ccirc%20%5C%3A%7Dx%5Cleft%28-3%5Cright%29%3D-3%5Ccdot%20%5C%3A14)
Multiply the numbers: ![3 * 14 = 42](https://tex.z-dn.net/?f=3%20%2A%2014%20%20%3D%2042)
![-3^{\circ \:}x\left(-3\right)=-42](https://tex.z-dn.net/?f=-3%5E%7B%5Ccirc%20%5C%3A%7Dx%5Cleft%28-3%5Cright%29%3D-42)
Divide both sides by: ![-3^{\circ \:}\left(-3\right)](https://tex.z-dn.net/?f=-3%5E%7B%5Ccirc%20%5C%3A%7D%5Cleft%28-3%5Cright%29)
![\frac{-3^{\circ \:}x\left(-3\right)}{-3^{\circ \:}\left(-3\right)}=\frac{-42}{-3^{\circ \:}\left(-3\right)}](https://tex.z-dn.net/?f=%5Cfrac%7B-3%5E%7B%5Ccirc%20%5C%3A%7Dx%5Cleft%28-3%5Cright%29%7D%7B-3%5E%7B%5Ccirc%20%5C%3A%7D%5Cleft%28-3%5Cright%29%7D%3D%5Cfrac%7B-42%7D%7B-3%5E%7B%5Ccirc%20%5C%3A%7D%5Cleft%28-3%5Cright%29%7D)
Simplify:
![x=-\frac{840}{180^{\circ \:}}](https://tex.z-dn.net/?f=x%3D-%5Cfrac%7B840%7D%7B180%5E%7B%5Ccirc%20%5C%3A%7D%7D)
Hope I helped. If so, may I get brainliest and a thanks?
Thank you, have a good day! =)
36 percent would be 36/100
divide 36 and 100 by 4
you should get 9/25 which is the simplest form