Iwill give 25 points! will mark brainliest if correct! i dont care if you show work i just need the answers!

1.) solve each formula for the variable indicated in red: v=lhw ( w is in red )
2.)solve each formula for the variable indicated in red: c=2πr ( r is in red )
3.)solve each formula for the variable indicated in red: v= 1/3 bh ( b is in red )
4.) a black mamba travels 20 mi/h for 1/4 mile. how many seconds does it take the snake to travel 1/4 mile? solve the distance formula for time. for which variables in the formula should you substitute 20 and 1/4. how many seconds are in an hour.

1. V = lhw

Divide both sides by lh:

w = V /lh

2. C = 2πr

Divide both sides by 2π

r = C/2π

3. V=1/3Bh

Multiply both sides by 3:

3V = bh

Divide both sides by h:

B = 3V/h

4. There are 4 1/4 miles per 1 mile.

20 x 4 = 80, so there are 80  1/4 miles in 20 miles.

There are 60 minutes per hour, so the snake travels 80 quarter miles per 60 minutes.

80/60 = 1 1/3 minute per 1/4 mile = 1 minute 20 seconds = 80 seconds.

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)