The denominator would still be the same you placed the marble back into the bag
X+3y=-13
x=-3y-13
5(-3y-13) +7y = -9
-15y -65 +7y = -9
-8y-65=-9
65 -
-----
-74
/-8
------
y= 9.25
x+3(9.25) = -13
x+27.75= -13
27.75-
-------
x= -40.75
Answer:
rotations, translations, and reflections will not have an effect on a triangles size or shape. They just move it, rotate it, or mirror it.
Only a dilation will change a triangles size. Dilations scale a triangle up or down which change the triangles segment lengths but does not change it's angle sizes.
Let
x-------------> <span>the length of a rectangle
y-------------> the </span>width of a rectangle
we know that
x+y=130-----------> equation 1
and
x=1.6y--------------> equation 2
<span>I substitute 2 in 1
(1.6y)+y=130-------------> 2.6y=130------------> y=130/2.6------> y=50 ft
x=1.6y--------> x=1.6*50---------> x=80 ft
the answer is
</span>the length is 80 ft
the width is 50ft
Step-by-step explanation:
2n+1+2n+3+2n+5+2n+7
8n+16=40
8n=40-16
8n=24
n=3