How to find pool width with just by time and speed?

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Calculate width by using time speed and the method you use will depend on what information you already have.Calculate speed, distance or time using the formula d = st,.

To solve for distance use the formula for distance d = st, or distance equals speed times time.

distance = speed x time

Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate r is the same as speed s, r = s = d/t. You can use the equivalent formula d = rt which means distance equals rate times time.

distance = rate x time

To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.

speed = distance/time

To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.

time = distance/speed

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To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.

FORMULAS FOR POOL CAPACITY
L = length W = width V = volume D = depth
r = radius (half of the diameter of a circle)
π = (pi) 3.14 (a factor used in calculations with circles)
SURFACE AREA
Rectangular pool = L x W
Circular pool = r² x π
Right triangle = (L x W) ÷ 2
AVERAGE DEPTH
For constant slope: [D (minimum) + D (maximum)] ÷ 2 = AVERAGE DEPTH
Note: For multi-depth pools calculate the volume in sections of constant slope and
add them together.
CUBIC FEET OF VOLUME (surface area times average depth)
Rectangular pool V = L x W x D
Circular pool V = r² x π x D
POOL GALLONAGE IN CUBIC FEET (cubic foot of water = 7.5 gallons)
Rectangular pool gallons = L x W x D x 7.5
Circular pool gallons = r² x π x D x 7.5
FLOW RATE/TURNOVER RATES
SPAS: Required turnover every 30 minutes therefore required flow rate is:
Gallons ÷ 30 minutes = minimum (min) flow rate in gallons per minute (gpm)
LIMITED USE POOLS: Required turnover at least every 8 hours (8 x 60 min = 480 min)
Gallons ÷ 480 minutes = min flow rate in gpm

alculating the average speed is simple using the formula ${\text{speed}}={\frac {\text{distance}}{\text{time}}}$ . But sometimes you are given two different speeds used for some periods of time, or over some distances. In these instances, other formulas exist for calculating the average speed