Answer:

Step-by-step explanation:
Given


Required
The area of the shaded sector
This is calculated as:

This gives




Answer:
<h2>$4.7</h2>
Step-by-step explanation:
step one:
Let the cost be y
to solve for the cost of a movie ticket, we need to solve the expression
y=2.75+0.10x
step two:
given that x is the number of years between 1980-2000
the number of years is 20years
put x= 20 in the expression for the cost we have
y=2.75+0.10(20)
y=2.7+2
y=$4.7
Let x = small number
y=large numebr
x+y = 90
y-4x=15
substitute
we get:
x=21
y=90-21 = 69
OK so if they ring at 6AM together then they would ring like this from now on:
ANSWER: they ring together next at 9:20
Bell 1: 6:25 Bell 2: 6:40
Bell 1: 6:50 Bell 2: 7:20
Bell 1: 7:15 Bell 2: 8:00
Bell 1: 7:40 Bell 2: 8:40
Bell 1: 8:05 Bell 2: 9:20
Bell 1: 8:30 Bell 2: 10:00
Bell 1: 8:55 Bell 2: 10:40
Bell 1: 9:20 Bell 2: 11:20