Please don't post masses of questions all at once. 1-2 problems per post would be more realistic and fairer to others who need help.

Regarding <span>x-2/5 = 1/5

We are to solve for x. To do this, let's remove the fractions by mult. all 3 terms by 5. Then 5x - 2 = 1, or 5x = 3.

Dividing both sides by x, we get x = 3/5 (answer). Check this by subst. 3/5 into the original equation.</span>

5 0

3 years ago

Can anyone get the answer with an explanation i dont understand it

77julia77 [94]

Answer:

$d=\frac{2w(c-2)}{5}$

Step-by-step explanation:

The given formula is:

c=5d+4w/2w

We need to find d.

Multiply 2w on both sides, we get

c x 2w= 5d+4w/2w x 2w

2cw=5d+4w

Adding -4w on both sides, we get

2cw-4w=5d+4w-4w.

2cw-4w=5d

2w(c-2)=5d

Dividing by 5, we get

2w(c-2)/5 = 5d/5

2w(c-2)/5 = d

Hence the required formula with subject d is

$d=\frac{2w(c-2)}{5}$

4 0

3 years ago