Question

If your well has a diameter of 100 mm and the depth of the water in the well is 6 m, you would add 30 mL of bleach. What is the diameter of a well that requires 2700 mL of bleach?

a) 500 mm
b) 600 mm
c) 700 mm
d) 800 mm
And, how much bleach should be added to a well with a diameter of 750 mm?
a) 90 mL
b) 120 mL
c) 150 mL
d) 180 mL

Answer 1

To find the diameter of a well that requires 2700 mL of bleach, set up a proportion using given information. The diameter of the well is 900 mm. The amount of bleach to be added to a well with a diameter of 750 mm is 225 mL.

Step-by-step explanation:

To find the diameter of a well that requires 2700 mL of bleach, we can set up a proportion using the given information. We know that a well with a diameter of 100 mm requires 30 mL of bleach. So, we can set up the proportion:

(100 mm)/(2700 mL) = (30 mL)/(x mm)

Cross multiplying and solving for x, we get:

x = (2700 mL * 100 mm)/(30 mL) = 9000 mm = 900 mm.

Therefore, the diameter of the well that requires 2700 mL of bleach is 900 mm.

To find the amount of bleach that should be added to a well with a diameter of 750 mm, we can set up another proportion. We know that a well with a diameter of 100 mm requires 30 mL of bleach. So, we can set up the proportion:

(100 mm)/(30 mL) = (750 mm)/(x mL)

Cross multiplying and solving for x, we get:

x = (750 mm * 30 mL)/(100 mm) = 225 mL.

Therefore, the amount of bleach that should be added to a well with a diameter of 750 mm is 225 mL.