Question

Some researchers found that 7/10 of the population dreams in color, while the rest dream in black and white. suppose there were 350 people sleeping at a hotel. according to the above information,

how many people would dream in color, and how many would dream in black and white"?

Answer 1

Answer: 245 dreams in color, 105 dreams in black and white

Explanation:

According to the above statement
`(7)/(10)` of the population dream in color.

We are given a total of 350 people. We need to divide 350 by 10 first. That would equal 35. Now we can multiply that by 7. We would get 245. That means 245 of the people sleeping in the hotel are dreaming colors.

Now we can subtract 350-245 and get 105. That's how many sleeping people in the hotel are dreaming in black and white. To check, we can do the strategy of dividing the total people by the denominator and multiplying the quotient with the numerator.
`(350)/(10)`·3=105. Now our answer is confirmed.

Hope that helped a lot.

:)