7x / 8 = 21
7x = 8*21
x = 24
Answer:
u totally need to put an image or else no one is gonna be able to answer it.
Step-by-step explanation:
by the way the answers are randomly generated by it seems like the answers are always B or C
Answer is likely B or C
Answer:
Left apples = 2
Step-by-step explanation:
The given problem is "If pierino has 4 apples and eats two, what is left".
Total no of apples = 4
He eats 2 apples = 2
We need to find no of apples left.
Left apples = total no of apples - eaten apples
= 4 - 2
= 2
Hence, there are 2 apples left.
Answer:
12
Step-by-step explanation:
20 divided 60% = 12
Answer:
Perimeter = 18(1 + √3 ) cm
Step-by-step explanation:
The radius of each ball = 1/2 * 6 = 3 cm.
Lines drawn from the 2 points of contact for one billiard ball to the center of the ball are at right angles to the sides of the triangle ( Tangent/radius theorem).
If we now draw a line from the vertex of the big triangle to the center of the ball we get 2 right triangles, and they are 30-60-90 triangles.
If the adjacent side of a triangle ( which is part of the side of the big triangle) = x:
tan 30 = 3 / x
x = 3 / tan 30
= 3 / 1/√3
= 3√3 cm.
There are 6 of these sides in the big triangle so their total length =
18√3 cm.
The three 'middle' sides joining 2 billiard balls each have a length of 2 radii = 6 cms ( as they form a rectangle with the radii of 2 billiard balls).
So the perimeter of the triangle = 18√3 + 3(6)
= 18(1 + √3 ) cm
I would have liked to transfer a diagram but I can't get to copy it to this site.
