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slavikrds [6]
3 years ago
15

. Use π ≈ 3.14 to estimate the circumference of the circle.

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Answer:

circumference = 3.14 ×7.6 ( pi × d )

=23.864

Alisiya [41]3 years ago
4 0

Answer:

23.88

Step-by-step explanation:

2*3.14*3.8

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I'm so confused. Please help I tried the first time got 50 some thing then 33 then 20.25. How do I do this?
vazorg [7]

Answer:

Basically, you have to think: more bricks : more time

more workers : less time

2,400 bricks 6 workers takes 18 hours

You now have to solve for 4,500 blocks and 10 workers

4,500 / 2,400 = 1.875 (times greater)

10 / 6 = 1.666666666 (times less)

So, we get 18 hours, multiply it by 1.875 and divide it by 1.666666666

which equals 20.25 hours

So, it seems you were correct on your third try.


Step-by-step explanation:


5 0
2 years ago
An aircraft flew 5 hours with the wind. The return trip took 6 hours against the wind. If the speed of the plane in still air is
Yakvenalex [24]

Answer:

Speed of wind = 23.63 miles per hour

Plane speed in still air = 260 miles per hour

Step-by-step explanation:

Given:

Time taken with wind = 5 hour

Time taken against wind = 6 hour

Assume;

Speed of wind = s

So,

Speed of Plane with wind = (260 + s) miles per hour

Speed of Plane against wind = (260 - s) miles per hour

Distance = speed x time

So,

(260 + s)5 = (260 - s)6

1,300 + 5s = 1,560 - 6s

11s = 260

s = 23.63 miles per hour

Speed of wind = 23.63 miles per hour

Plane speed in still air = 260 miles per hour

5 0
3 years ago
What is the common ratio of the following sequence? 80, 20, 5, ... <br> A) -4 <br> B) 1/4 <br> C) 4
Stolb23 [73]

\bf 80~~,~~20~~,~~5~\hfill \cfrac{20}{80}\implies \boxed{\cfrac{1}{4}}~~,~~ \cfrac{5}{20}\implies \boxed{\cfrac{1}{4}}~\hfill \stackrel{\textit{common ratio}}{\boxed{\cfrac{1}{4}}}

6 0
3 years ago
PLEASE ANSWER ILL GIVE CROWN TO RIGHT ANSWERR
nikdorinn [45]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
4x=17 math answer question
igor_vitrenko [27]

Answer: 4.25

divide 4 on both sides, and it should leave you with x = 4.25

your welcome :)

7 0
3 years ago
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