Answer:
Step-by-step explanation:
Let
x -----> the number of days
y ----> the number of minutes Yuson has left
we know that
The linear equation in slope intercept form is equal to
where
m is the slope
b is the y-coordinate of the y-intercept (initial value)
In this problem we have
The slope is equal to
----> is negative because is a decreasing function
----> initial value
substitute the values
Answer:
13.81
Step-by-step explanation:
Area of circle= pi times radius^2
diameter=2 times radius
radius=diameter/2
diameter=12
radius=12/2
radius=6
pi times r&+^2
pi times 6^2
pi times 36
aprox pi=3.14
113.04 in^2
1) correct
2) 63 deg
3) 3x - 1 + 90 + 31 = 180
3x + 120 = 180
3x = 60
x = 20
4) x = 34 + 21 = 55
5) 2x + 3 + 51 = 100
2x + 54 = 100
2x = 46
x = 23
6) 60 + 2x = 94
2x = 34
x = 17
7) 85
8) x + 2x + 3x = 180
6x = 180
x = 30
9) 2x - 2 + x + 5 = 90
3x + 3 = 90
3x = 87
x = 29
10) 147
11) 3x = 180
x = 60
12) x + 40 + 2x - 5 + 3x - 17 = 180
6x + 18 = 180
6x = 162
x = 27
