Volume of the cone is 100 in³
Step-by-step explanation:
- Step 1: Volume of a cone = 1/3 πr²h. Find volume of the cone where r = 3 inches and h = 9 inches.
Volume = 1/3 × 3.14 × 3² × 9
= 84.78 in³ ≈ 100 in³ (rounding off to nearest hundredth)
Answer:
Estimate the value of pi =3.14
Step-by-step explanation:
The diameter of the circle base of a storage container 18.8m
The diameter of the circle 'd' = 2r
Given data 'd' = 2r = 18.8m
The circumference of the circle = 2πr
Given data of circumference of the circle = 59 m
given 2πr = 59
2r(π) = 59
18.8 π = 59 ( by using 2r =18.8)
π = 59/18.8
π = 3.13829
π = 3.14
<u>Conclusion</u>:-
Estimate the value of pi =3.14
They will be 400 miles apart in 4 hours.
Let "a" and "s" represent the costs of advance and same-day tickets, respectively. Your problem statement gives you two relations.
.. a + s = 35 . . . . . the combined cost of one of each is 35
.. 15a +40s = 900 . . total paid for this combination of tickets was 900
There are many ways to solve these equations. You've probably been introduced to "substitution" and "elimination" (or "addition"). Using substitution for "a", we have
.. a = 35 -s
.. 15(35 -s) +40s = 900 . . substitute for "a"
.. 25s +525 = 900 . . . . . . . simplify
.. 25s = 375 . . . . . . . . . . . .subtract 525
.. s = 15 . . . . . . . . . . . . . . .divide by 25
Then
.. a = 35 -15 = 20
The price of an advance ticket was 20.
The price of a same-day ticket was 15.
