Ask question

Ask question

All categories

2 years ago

10

A rectangular pool contains 920 cubic meters of water. the pool is .4 meter deep and 100 meters wide. How long is the pool?

1 answer:

LekaFEV [45]2 years ago

5 0

Hi there,

Sol:
Length of the swimming pool = 260 m
Breadth of the swimming pool = 140 m

Let the height of the water in the swimming pool after pouring water be h meters.

Volume of the water poured = 54600 m3

l x b x h = 54600
260 x 140 x h = 54600
h = (54600) / (260 x 140)
h = 1.5 m = 150 cm

Hope it helps

You might be interested in

15 more than twice a number

coldgirl [10]

Answer:

15×2x

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Rewrite cot 80° in terms of its cofunction.

zysi [14]

Answer:

tan 10 degrees.

Step-by-step explanation:

tan x = cot (90 - x) so:

cot 80 = cot (90 - 10)

= tan 10.

8 0

2 years ago

How do you solve this In this case 1422 = 5534/(1+r)^4

Sever21 [200]

It is okay to take the inverse of both side given that you remember to exclude the value that make the denominator zero which is in this case r=-1

8 0

2 years ago

Find the radius and the diameter to the nearest hundredth when c = 6π yd. use 3.14 for π

Natali [406]

Radius is 3 And diameter 3×2

8 0

3 years ago

The population of a county is growing at a rate of 9% per year, compounded continuously. How many years will it take for the pop

torisob [31]

Answer:

$t=15.4\ years$

Step-by-step explanation:

The exponential growth function compounded continuously is equal to

$A=P(e)^{rt}$

where

A is the final population

P is the initial population

r is the rate of growth in decimal

t is Number of years

e is the mathematical constant number

we have

$A=4x\\P=x\\ r=9\%=9/100=0.09$

substitute in the function above

$4x=x(e)^{0.09t}$

simplify

$4=(e)^{0.09t}$

Take natural log of both sides

$ln(4)=ln[(e)^{0.09t}]$

$ln(4)=0.09t(ln(e))$

$ln(e)=1$

$ln(4)=0.09t$

$t=ln(4)/0.09$

$t=15.4\ years$

8 0

3 years ago