Answer:
x=1
x=3
Step-by-step explanation:
X-intercepts are the points in which the graph crosses the x-axis
You can solve this type of question two ways:
First cross multiply:
<u>x </u> = <span><u>3</u>
</span>42 7
(42)(3) = (7)(x)
This becomes :
126 = 7x
To solve for x divide both sides by 7 and you get x = 18
The other way to solve it is to think, what do I need to do to get x all by itself?
Since it's being divided by 42, you need to multiply each side of the equation by 42.
42 * <u>x</u> = <span><u>3</u> * 42
</span> 42 7
This leaves you with x = (42*3)/2
This simplifies to x = 18
Answer:
10.68%
Step-by-step explanation:
Total no of racers = 290
No of racers that completed the race = 259
No of racers that gave up = 28
No of racers that were disqualified = 3
No of racers that did not complete the marathon = 28 + 3 = 31
We need to find the percentage of the racers did not complete the marathon. It can be given by :
So, the percentage of the racers that did not complete the marathon is 10.68%.