The balanced scale represents the equation: 4x + 2 = x + 5 If one x block is subtracted from the right side and two numbered blocks are subtracted from the left side. What process will
balance the scale?
A)
subtract one x block from the left side and subtract two numbered blocks
from the left side
B)
subtract one x block from the right side and subtract two numbered blocks
from the right side
subtract one x block from the right side and subtract two numbered blocks
from the left side
D)
subtract one x block from the left side and subtract two numbered blocks
from the right side

Step-by-step explanation:

D) subtract one x block from the left side and subtract two numbered blocks from the right side

Step-by-step explanation:

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!