Answer:
The answer is x = 5
Step-by-step explanation:
I added similar elements, then I subtracted 7 from both sides, next I divided by 5 both sides, and lastly I got x = 5 as my answer.
It would be take upto 999 revolutions.
<em>Let try to solve it,</em>
Let n represent number of revolutions.
We are asked to find the number of revolutions it will take for a car wheel of diameter 30 in. to travel a distance of one mile.
1 mile = 63360 inches.
We will use circumference of circle formula to solve our given problem.
Circumference = pi*d , where, D represents diameter of circle.
Now, we will set the product of n and circumference of circle equal to 63360 inches as:
pi*22*n= 63360
n= 63360*7/ 22*22
n= 443520/444
n= 998.91
Therefore It would be take upto 999 revolutions.
Learn more about Circumference of circle on:
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Answer:
1018 cm
Step-by-step explanation:
A=piR^2
To find the radius from circumference, we divide by pi and then divide by two.
C=36pi
36pi/pi=36
36/2=18
R=18
if we plug 18 into
A=piR^2,
we get
18pi^2=A
18pi^2=1017.88
round this to get 1018
A=1018
Answer:
Probability to pick 4 tiles which spell CATS will be 
.
Step-by-step explanation:
We have 8 scrabble tiles A, B, C, D, R, S, T, U in a bag.
Probability to pick 4 tiles C, T, A, and S out of 8 tiles = 
= 
= 
= 
= 
= 70
So we can choose C, T, A and S tiles in 70 different ways but the probability to pick 4 tiles which spell CATS will be
=
Therefore, probability to pick 4 tiles which spell CATS will be .
