Answer:
6 cm
Step-by-step explanation:
wire was bent into the shape of a rectangle with width 5 and length 7. If this wire is bent into shape of a square, what is the length of a side of the square
Given that:
Rectangular wire with the following dimension :
Width = 5
Length = 7
To obtain the total length of the wire :
Perimeter of rectangle :
2 (length + Width)
2 (5 + 7)
2(12)
= 24 cm
The length of each side of the square will be :
Number of sides = 4
Length of each side :
24 / 4 = 6 cm
Answer:
1) one solution
2) Infinitely many solution
3) no solution
Step-by-step explanation:
The first equation is -14-8x=-2(-3x+7)
Let us expand the right hand side to get:
-14-8x=-2*-3x+-2*7
We multiply -14-8x=6x-14
We group similar terms to get:
-8x-6x=-14+14
Combine similar terms to get:
-14x=0
Divide through by -14 to get:
x=0
2) The second equation is 3+5x=5(x+2)-7
We expand to obtain:
3+5x=5x+5*2-7
Multiply to get:
3+5x=5x+10-7
This gives us
3+5x=5x+3
5x=5x
1=1
There is infinitely many solutions
3) The third equation is: 36-7x=-7(x-5)
We expand to get:
36-7x=-7x+35
Group similar terms;
-7x+7x=35-36
0=-1
This statement is not true so there is no solution.
You add +7 to both sides and then divide by 9 to get the x alone.
