The centre of this circle is at 12
1
2
and has radius 12
1
2
, so the equation is (−12)2+2=12
(
x
−
1
2
)
2
+
y
2
=
1
2
.
Answer:
33%
Step-by-step explanation:
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Answer:
Step-by-step explanation:
Ratio of adults to student is 2:5
If there are 12 more students than adults
Then, let adults be x
Then student is x+12
Total number =2x+12
Therefore,
Student =5/7 ×(2x+12)
x+12=(10x+60)/7
Cross multiply
7x+84=10x+60
7x-10x=60-84
-3x=-24
Divide both side by -3
x= -24/-3
x=8
The third option represent the solution.....
Answer:
x= 12
Step-by-step explanation:
Multiply everything by 12 (making it easier to solve) to get
6x + 4x = 3x + 84
Simplify to get
7x = 84
Solve for x and get x=12
To find 12 meters in 28 seconds, you will divide the 12 by 28 as follows:
12 / 28 = 3/7
Dividing distance by time usually gives you velocity. This means that moving 12 meters in 28 seconds means that the object moves 3/7 meters in one second.