Answer:
142
Step-by-step explanation:
The line underneath the straight angle is a straight line, meaning it is 180 degrees. <em>180-38= 142</em>
The length of the ramp calculated using Pythagoras is approximately 350 cm
From the diagram attached :
- Height of ramp = opposite = 225 cm
- Angle of inclination, θ = 40°
Using Pythagoras ; the length of the ramp can calculated as follows :
Sin θ = opposite / hypotenus
Sin 40° = 225 / hypotenus
Cross multiply
Hypotenus × 0.6427876 = 225
Divide both sides by 0.6427876 to isolate the hypotenus
Hypotenus = 225 / 0.6427876
Hypotenus = 350.03786 cm
Therefore, the length of the ramp which is the hypotenus is approximately 350 cm
Learn more : brainly.com/question/10040532
in short, we simply divide the whole of 45 by (7+4+3+1), and then distribute accordingly, let's do that,
![\bf \cfrac{45}{7+4+3+1}\implies \cfrac{45}{15}\implies 3 \\\\[-0.35em] ~\dotfill\\\\ \stackrel{Stephen}{7(3)}~:~\stackrel{Marley}{4(3)}~:~\stackrel{David}{3(3)}~:~\stackrel{Katherine}{1(3)}\implies \stackrel{Stephen}{21}:\stackrel{Marley}{12}:\stackrel{David}{9}:\stackrel{Katherine}{3}](https://tex.z-dn.net/?f=%5Cbf%20%5Ccfrac%7B45%7D%7B7%2B4%2B3%2B1%7D%5Cimplies%20%5Ccfrac%7B45%7D%7B15%7D%5Cimplies%203%20%5C%5C%5C%5C%5B-0.35em%5D%20~%5Cdotfill%5C%5C%5C%5C%20%5Cstackrel%7BStephen%7D%7B7%283%29%7D~%3A~%5Cstackrel%7BMarley%7D%7B4%283%29%7D~%3A~%5Cstackrel%7BDavid%7D%7B3%283%29%7D~%3A~%5Cstackrel%7BKatherine%7D%7B1%283%29%7D%5Cimplies%20%5Cstackrel%7BStephen%7D%7B21%7D%3A%5Cstackrel%7BMarley%7D%7B12%7D%3A%5Cstackrel%7BDavid%7D%7B9%7D%3A%5Cstackrel%7BKatherine%7D%7B3%7D)
Answer:
there is 22 males in the class
Step-by-step explanation:
