Length = x, width = y
x = 2y - 10....so sub in 2y - 10 for y back in the other equation
2x + 2y = 88
2(2y - 10) + 2y = 88
4y - 20 + 2y = 88
4y + 2y = 88 + 20
6y = 108
y = 108/6
y = 18
x = 2y - 10
x = 2(18) - 10
x = 36 - 10
x = 26
so the length (x) is 26 mm and the width (y) is 18 mm
The width of the stamp is 8 mm less then the length (26 - 18 = 8)
The Simplified Answer Is 192y^2
The first thing you should do for this case is to take 35% out of 9.95
We have then
(0.35) * (9.95) = 3.4825
Then, we must add this value from the original price of a dozen
9.95+3.4825 = <span>
<span>13.4325
less a 25 percent trade discount
</span></span> 13.4325*(1-0.25)=<span>
<span>10.074375
</span></span> answer
the selling price of each dozen should be $<span>
<span>10.074375</span></span>
To find the lateral surface area of a pyramid, you can find the area of each triangle, A = 1/2bh or A = 1/2lw, then multiply by the number of triangles, which would be based on the number of sides of the base; or you can take half the perimeter and multiply by the slant height.
