Answer:
<h2>C = 70π cm</h2><h2>A = 2,450 cm²</h2>Step-by-step explanation:
The perimeter of the given figure is equal to the circumference of whole circle.
The formula of a circumference of a circle:
d - diameter
We have d = 70 cm. Substitute:
The area of given figure is equal to the area of rectangle 70cm × 35cm.
(look at the picture).
The area of a rectangle:
Answer:
14
Step-by-step explanation:
This can be solved by writing 2 equations and solving simultaneously.
Let <em><u>number of Adult tickets be A, and number of child tickets be C.</u></em>
<em><u /></em>
<u><em>"Bob bought 24 hockey tickets":</em></u>
<em><u>"Adult tickets cost $5.50, and child tickets cost $2.00...Bob bought 24 hockey tickets for $83":</u></em>
Now we can solve the first equation for A and substitute in 2nd equation and get the value of C.
A + C = 24
A = 24 - C
Now,
5.5 A + 2 C = 83
5.5 (24 - C) + 2C = 83
132 - 5.5C + 2C = 83
-3.5 C = 83 - 132
-3.5C = - 49
C = 14
Hence, Bob bought 14 child tickets