Answer:
168
Step-by-step explanation:
So anytime we have a slope and want to find the slope of a perpendicular line, we just have to remember a perpendicular line's slope is the negative reciprocal (reciprocal means flip the fraction). So if we had a slope of 3/4, the slope perpendicular to it would be - 4/3.
First we need to find our slope, to do this we take the change in y over the change in x like so:
(15-12)/(4-7) = - 3/4
The slope perpendicular to this is 4/3.
Answer:
so first u do (4-2) which is 2
then minus 18 from 2 which is 16
then u multiply by 2 which is 32
therefore the answer is 32
Let, the total number of students in school that ride the bike to school be "x"
Now,
Using ratio and proportion, we get,
![\frac{5}{32} = \frac{x}{800}](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B32%7D%20%3D%20%5Cfrac%7Bx%7D%7B800%7D%20)
![\frac{5}{32}*800 = \frac{x}{800} *800](https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B32%7D%2A800%20%3D%20%5Cfrac%7Bx%7D%7B800%7D%20%2A800)
![\frac{4000}{32} =x](https://tex.z-dn.net/?f=%20%5Cfrac%7B4000%7D%7B32%7D%20%3Dx)
![125 =x](https://tex.z-dn.net/?f=125%20%3Dx)
![x=125](https://tex.z-dn.net/?f=x%3D125)
So, out of 800 students, 125 ride their bike to school.