Question

In a factory that manufactures light bulbs,0.04% of all light bulbs manufactured are defective.On the average,there will be three defective light bulbs out of how many manufactured?​

Answer 1

Х * 0.0004 = 3
х = 3 / 0.0004
х = 7500

Answer 2

Ответ:

1) 0,04%=4/10000

2)(3:4)·10000=7500

Health and good luck!

Пошаговое объяснение:

Answer 3

To find out how many light bulbs are manufactured in total, we can set up a proportion using the given information.

Let's say x is the total number of light bulbs manufactured.

According to the given information, 0.04% of all light bulbs manufactured are defective. This can be written as 0.04/100, which simplifies to 0.0004.

Since we want to find out the number of defective light bulbs out of x, we can set up the proportion:

0.0004 (defective light bulbs) / x (total light bulbs) = 3 (defective light bulbs) / x

Cross multiplying, we have:

0.0004x = 3x

Dividing both sides of the equation by 0.0004, we get:

x = 3 / 0.0004

x ≈ 7500

Therefore, on average, there will be three defective light bulbs out of 7500 manufactured.