Answer:
Step-by-step explanation:
The formula of a circumference of a circle:
r - radius
We have <em>r = 8</em>. Substitute:
S=sodas h=hotdogs
228=s+h
s=3h
228=3h+h 228=4h h=57
228=s+57 s=171
Answer: 171 sodas and 57 hotdogs were sold by the vendor
Answer:
sohcahtoa
sine=opposite/hypotenuse
cosine=adjacent/hypotenuse
tangent=opposite/adjacent
I don't know what else to say
Answer:
Here you go!
Step-by-step explanation:
Since we are not yet sure what our number is, we should use a variable to represent that number, and then solve for that variable.
I will use "x" as our variable to represent the number we are trying to find.
Let's take the problem piece by piece.
Six less than four times a number.
If we are using x to represent our number, we know that when we do four times that number we are multiplying x times 4, which is the same as writing "4x."
Next we know that we are taking six less than 4x. Six less than means we will be subtracting 6 from our 4x, which is the same as writing 4x - 6.
Finally, we know that six less than 4x (4x - 6) equals 15. Now we have a full equation:
4x - 6 =15
Now we have to solve for x by getting x by itself:
4x - 6 = 15
add 6 to both sides to move the 6 away from the x
4x = 21
now divide by 4 to get x by itself
x = 21/4, in decimal form this is 5.25
Answer:
Area of plane surface of cylinder = 2772 sq.cm.
Step-by-step explanation:
Let r be the radius and h be the height of the cylinder.
Curved Surface Area = 1848 sq.cm
2πrh = 1848
2××rh = 1848
rh = 1848 × ×
rh = 294
Sum of radius and height = 35
r + h = 35 --- (1)
Now,
r - h =
=
=
=
= 7
r - h = 7 --- (2)
Adding (1) and (2),
2r = 42
r = 21 cm.
Area of the plane surface = 2 × π
= 2 × × 21 × 21
= 2772 sq.cm.