The cost of bathing service per dog :
$324/27 = $12
x = <span>number of dogs she washes
</span>y = revenue
so the equation:
y = 12x
1 dog = $12
2 dogs = $12 x 2 = $24
3 dogs = $12 x 3 = $36
4 dogs = $12 x 4 = $48
use these coordinate points to graph it.
x - coordinate = <span>number of dogs she washes
</span>y - coordinate = total cost ($)
An equation in the form

is the line
that goes through the origins and whose tangent equates

. In general, any equation in the form

is the equation of a line.
Answer:
2 and a half cup
Step-by-step explanation:
A detailed look at the image attached will provide further explanation.
<span>Point B has coordinates (3,-4) and lies on the circle. Draw the perpendiculars from point B to the x-axis and y-axis. Denote the points of intersection with x-axis A and with y-axis C. Consider the right triangle ABO (O is the origin), by tha conditions data: AB=4 and AO=3, then by Pythagorean theorem:
</span>
<span>

.
</span>
{Note, that BO is a radius of circle and it wasn't necessarily to use Pythagorean theorem to find BO}
<span>The sine of the angle BOA is</span>

Since point B is placed in the IV quadrant, the sine of the angle that is <span> drawn in a standard position with its terminal ray will be </span>
<span /><span>
</span><span>
</span>

.
Answer:
a.
x + y = 60
x = y + 30
b.
substitution:
(y + 30) = y = 60
2y + 30 = 60
2y = 30
y = 15
15 minutes for freehand
c.
No, because if he spends 40 minutes on the treadmill, he would have spent 10 minutes for freehand exercises. His total time in the gym would be 50 minutes, not 60.