Answer: the speed of the wind is 1.5 mph
Step-by-step explanation:
Let x represent the speed of the wind.
Time = distance/speed
Craig can ride his bike at an average rate of 14 miles per hour in calm air. Traveling with the wind, his total speed would be (14 + x) mph
Time taken to travel 62 miles with the wind would be
62/(14 + x)
In the same amount of time it took him to ride 50 miles against the wind. His total speed would be
(14 - x) mph. Time taken to travel 50 miles is
50/(14 - x)
Since the time is the same, then
62/(14 + x) = 50/(14 - x)
Cross multiplying, it becomes
62(14 - x) = 50(14 + x)
868 - 62x = 700 + 50x
- 62x - 50x = 700 - 868
- 112x = - 168
x = - 168/-112
x = 1.5
Answer: ![\frac{13}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B13%7D%7B35%7D)
Step-by-step explanation:
negative 3 over 7= ![-\frac{3}{7}](https://tex.z-dn.net/?f=-%5Cfrac%7B3%7D%7B7%7D)
Plus 4 over 5= ![\frac{4}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B5%7D)
When adding fractions together, you should first change into a common denominator, then do the operation.
------------------------------------------------------------------------------------------------
= ![-\frac{15}{35}](https://tex.z-dn.net/?f=-%5Cfrac%7B15%7D%7B35%7D)
= ![\frac{28}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B28%7D%7B35%7D)
+![\frac{4}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B5%7D)
=
+![\frac{28}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B28%7D%7B35%7D)
=![\frac{13}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B13%7D%7B35%7D)
Hope this helps!!
Please let me know if you have any questions
Thats when point =0. equation of a line mx +b where m is the slope
and b is the intercept
Answer:
$250
Step-by-step explanation:
Answer:
Step-by-step explanation:
Say
is the input, and
is the output.
becomes ![y = 5(12) - 10](https://tex.z-dn.net/?f=y%20%3D%205%2812%29%20-%2010)
We need to multiply 5 by 12.
5 times 12 = 60.
Subtract 10 to get our answer.
60 - 10 = 50.
The complete equation is ![50 = 5(12) - 10](https://tex.z-dn.net/?f=50%20%3D%205%2812%29%20-%2010)
Where as
is 12, and
is 50.
Hope this helped.
Have a nice day.