Answer:
13.50
Step-by-step explanation:
First find the discount
18 * 25%
18 * .25
4.5
Subtract this from the price
18 - 4.5
13.5
The new price is 13.50
x + y = -9
x + 2y = -25
Rewrite the first equation as x = -9-y
Relace x in the second equation:
-9-y + 2y = -25
Simplify:
-9 +y = -25
Add 9 to both sides:
y = -16
Now you know y,, replace y in the first equation and solve for x:
x -16 = -9
Add 16 to both sides:
x = 7
Answer: x = 7
Answer:
$7.50
Step-by-step explanation:
Hourly Pay * 5 = 37.5
Rearrange to find the hourly pay
Hourly pay = 37.5 / 5 = 7.5
In a triangle the midline joining the midpoints of two sides is parallel to the third side and half as long ⇒
2(3x + 2) = 2x + 20
6x + 4 = 2x + 20
6x - 2x = 20 - 4
4x = 16
x = 16/4
x = 4
midsegment = 3x + 2 = 3*4 + 2 = 12 + 2 = 14
