Form an equation to describe the situation
x+y=10
Then use the other information they gave you and form another equation
x-y=2
You can add the two equations together, and you see that the y variables cancel out(elimination)
2x=12
Solve for one variable and then plug it back into the original equation
x=6
6+y=10
y=4
Answer:
Step-by-step explanation:
Let 
be the volumes of the smaller and bigger cylinder.
The formula for the volume of a cylinder is given by :
As the two triangles are similar, the cube of their ratio would equal the ratio of their volume i.e.
So, the volume of the smaller cylinder is equal to 
.
Answer:
15. 88%
Step-by-step explanation:
I did division
I think it’s 80,000 yw if I’m right sorry if I’m wrong
D = 25 ft is the length of a shadow. L - the length of a tree.
Two angles are 85° and 65° and the third is 180° - ( 65° + 85° ) =
= 180° - 150° = 30°.
We will use the Sine Law:
25 / sin 30° = L / sin 65°
25 / 0.5 = L / 0.9063
25 * 0.9063 = 0.5 L
22.6577 = 0.5 L
L = 22.6577 : 0.5
L = 45.3 ft.
Answer: the approximate length of the tree is 45.3 ft.
