Answer:
y = $15.5x
Step-by-step explanation:
Given that
Tim earns $31 after 2 hours
$46.5 earns after 3 hours,
And, $62 earns after four hours
So first determine the each hour earnings i.e.
= $31 ÷ 2
= $15.5
In two hours it would be $31 and so on
So here the equation would be
Here
y = money amount
x = number of hours
5
Plug x-7 in for y, in the bottom equation.
x - 7 = 2 + 2x - 4
x - 7 = 2x - 2
x = 2x + 5
-x = 5
x = -5
-15
-3(-4-5x)= -18
12+15x= -18-12
15x= -30
x= -30÷15
x= -15
Or
We want to find the angle which forms a y-coordinate of
on the unit circle.
The y-coordinate on the unit circle is given by .
This implies that