Total volume = 3 litres
Volume of each glass = 1/4 litre
Divide 3 by 1/4
3 / (1/4)
3* (4/1)
= 12 glasses
Working:
Area of the rectangle= 12 x 4 =
48cm^2Area of the semicircles=
![\pi](https://tex.z-dn.net/?f=%20%5Cpi)
x 2² =
12.56cm^2
48+12.56= 60.56
Answer: 60.56cm²
Oleg, Sasha, and Dima shared 600 toys. Sasha had twice as many toys as Oleg. Dima had 40 more toys than Oleg.
Let the number of toys Oleg has = x
Let the number of toys Sasha has = y
Let the number of toys Dima has = z
Sasha had twice as many toys as Oleg
So y = 2*x= 2x
Dima had 40 more toys than Oleg.
z = x + 40
Oleg, Sasha, and Dima shared 600 toys
x + y + z= 600
We know y=2x and z=x+40
Replace it for y and z
![x + y + z = 600](https://tex.z-dn.net/?f=%20x%20%2B%20y%20%2B%20z%20%3D%20600%20)
![x + 2x + x + 40 = 600](https://tex.z-dn.net/?f=%20x%20%2B%202x%20%2B%20x%20%2B%2040%20%3D%20600%20)
![4x + 40 = 600](https://tex.z-dn.net/?f=%204x%20%2B%2040%20%3D%20600%20)
Subtract 40 on both sides
![4x = 600 - 40](https://tex.z-dn.net/?f=%204x%20%3D%20%20600%20-%2040%20)
Divide by 4 on both sides
![x = \frac{560}{4} = 140](https://tex.z-dn.net/?f=%20x%20%3D%20%5Cfrac%7B560%7D%7B4%7D%20%3D%20140%20%20)
Oleg had 140 toys
Answer:
Step-by-step explanation:
a. 2415
b. 3124
c. 627
d. 8
Answer:
<u><em>85 degrees</em></u>
Step-by-step explanation:
A triangle's angles must add up to 180 degrees.
50 + 45 = 95
180 - 95 = 85
x = 85