Answer:
the system of equation has infinite solution
Step-by-step explanation:
, 
Solve the first equation for x_2
Subtract 5x1 on both sides


Now substitute -5x1 on second equation



0=0
So the system of equation has infinite solution
Answer:
x=56
Step-by-step explanation:
·
then cross multiply
4200=75x
x=56
Answer:
B. 2 in.
Step-by-step explanation:
First, put the two perimeters together to form a fraction.
192/48, which can simplify to 4/1
Now, following the order in which you put the perimeters (I used C/D,) set it equal to the sides.

Now, cross multiply. (multiply 1 and 8, 4 and x.)

Now, solve.
x=2 inches.
Answer:
X= 3.7
Step-by-step explanation:
Perimeter of rectangle= 2(L+B)
37= 2(4X+X)
37= 2(5X)
37= 10X
37/10=X
3.7= X