Let x be the number of tickets sold to adults and y the number sold to students:
x + y = 315. But we know that y was double x, then :
y = 2x
Plug the value of y (in the 1st equation) by 2x:
x+ 2x = 315
3x = 315
and x = 105 (which is the number of tickets sold to adults
Is is actually quite easy if you think about it! The formula for finding the area of a circle is:
Area= pi x r2
Or in this case, Pi (3.14) x the radius squared.
In the picture above, the radius (Half of the diameter) is 3 units.
3x3 = 9
Now all that is left is to multiply it by pi!
9 x 3.14 = 28.26
So the answer is 28.26, or C! Hope this helped :)!
Answer:
x = 29°
The angles are 137° , 116° , 96° , 44° and 147°
Step-by-step explanation:
The sum of the angles of the polygon is given as 540°. The angles are given as 5x – 8°, 4x°
, 96° , 44°, 5x + 2. Therefore, the value of x can be found as follows
5x – 8° + 4x° + 96° + 44° + 5x + 2° = 540°
collect like terms
5x + 4x + 5x - 8 + 96 + 44 + 2 = 540°
14x + 134 = 540°
14x = 540 - 134
14x = 406
divide both sides by 14
x = 406/14
x = 29°
Therefore, the angles are as follows
29 × 5 - 8 = 137°
29 × 4 = 116°
96°
44°
5 × 29 + 2 = 147°
Answer:
True
Step-by-step explanation:
The term with no variable attached to it is the constant