Answer:
CD = 45
Step-by-step explanation:
CE = 180
( x + 6 ) + ( 4x - 21 ) = 180
5x - 15 = 180
5x = 195
x = 39
substitute x in CD
CD = x + 6
CD = 39 + 6
CD = 45
Answer:
45.75
Step-by-step explanation:
183/4=45.75.
Answer:
548
Step-by-step explanation:
area for the two triangles are 68
and for the two bigger rectangles is 320
and for the small rectangle 180
then add it all up and get 548
How many 3
wires can be cut from a spool of wire that is 100 inches long?
How many inches will be left over?
Number of pieces of wires = length of spool of wire ÷ length of each piece of wire.
Number of pieces = 100 ÷ 3 = 100 ÷ 
That gives 
Simplifying gives 
= 
This is equivalent to 26
pieces
So 26 pieces of wires can be cut from a spool and of a piece will be left over.
Since you have an equation equal to both x and y, you can either substitute the equation equal to x for x or the equation equal to y for y.
x=y-1
y=4-2x
I would substitute the y in using 4-2x
x=(4-2x)-1
x=3-2x
3x=3
x=1
Then plug in x and solve for y
1=y-1
2=y
