Answer:
110⁰
Step-by-step explanation:
The sum of the interior angles of a polygon is given by:
(n-2)*(180⁰), where n is the number of sides.
For this diagram, n = 7
(7-2)*(180⁰) = 900⁰
Sum of the 6 marked angles = 790⁰
Angle x = 900⁰ - 790⁰ = 110⁰
Answer:
$300
Step-by-step explanation:
In this question, we are simply asked to calculate the simple interest on $3000, at a rate of 20% paid after 6 months.
We can do this as follows. Mathematically, it should be remembered that:
S.I = PRT/100
In this case, we lost out the individual values as follows:
P = $3000, R = 20% and T = 6 months = 0.5years, S.I = ?
We substitute the parameters into the equation:
S.I = (3000 * 20 * 0.5)/100 = $300
Answer
C
Step-by-step explanation:
There are 15 students ages 4 - 11, 15 x 6.50 = 97.50
There are 12 students aged 12 - 17, 12 x 8.50 = 102
102 + 97.50 = 199.50
Answer:
I would treat it as algebra and for 2 simultaneous equations. dunno if that'll work because i haven't got pen or paper with me right now. So let adults be A and children be B
Step-by-step explanation:
Its called a octagon, hope that helps