The parallelogram area formula is b*h just like a square but the height is the distance from the base to the parallel top .. not the side length.. that's the only difference.

the base is x+4

total area is 5x+20

so use those in our formula

area = b*h

5x+20 = x+4 * h now solve for h (yes we'll have an x in the other side, but that's okay b/c their formulas do also)

(5x + 20) / (x+4) = h

area = b*h

8x-24 = b*8

(8x-24)/8 = b

8x/8 - 24/8 = b

x -3 = b

area = b * h

12x + 6y = 6 * h

(12x + 6y) / 6 = h

12x/6 + 6y/6 = h

2x + y = h

voila you're don :)

5 0

3 years ago

PLEASE HELP. I HAVE LIMITED TIME.

Lana71 [14]

I think this is it, but i’m not sure about the last one

3 0

2 years ago

I need helpppppppp!!!

yarga [219]

Answer: i would say probably 3 or -3

I hope it helps

3 0

3 years ago

1/2 + 5/3 - 1<br>------------------<br> 3/4

Sav [38]

Hey there :)

$\frac{ \frac{1}{2}+ \frac{5}{3} -1 }{ \frac{3}{4} }$
↓ Is the same as
$\frac{1}{2} + \frac{5}{3} -1$ ÷ $\frac{3}{4}$

Since it is a division by fraction, we can multiply by what is called the reciprocal
( The attached picture might help you )
( $\frac{1}{2} + \frac{5}{3} - 1$ ) × $\frac{4}{3}$
↓ For this part, we need the common denominator, which is 6
$\frac{1(3)}{2(3)}+ \frac{5(2)}{32)} \frac{1(6)}{1(6)}$ × $\frac{4}{3}$

$\frac{3}{6}+ \frac{10}{6} - \frac{6}{6}$ × $\frac{4}{3}$
$\frac{7}{6}$ × $\frac{4}{3}$
$\frac{14}{9} = 1\frac{5}{9}$
↑
Your final answer

7 0

3 years ago