Answer:
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Step-by-step emimi
Answer:
the number of dreams that include people you know out of 28 is 21
Step-by-step explanation:
Here is the complete question:
It is believed that about 
of our dreams involve people that we know.
So the expression to describe the number of dreams that feature people you know if you have "d" dreams is:
Now using the above expression we can predict number of dreams that include people you know out of 28. Here 28 represents number of dreams i.e. "d". So expression becomes:
Now simplify the above expression:
= 
= 
= 
Hence the number of dreams that include people you know out of 28 is 21
Answer:
77 and 91
Step-by-step explanation:
So essentially, half 168 and half 14. You're left with 84 and 7. So, subtract 7 from 84 and add 7 to 84. You're left with 77 and 91. To verify, just add them both up and you'll see they equal 168. Then, subtract 77 from 91 and you'll see that 91 is 14 more than 77 :)
If what I'm reading is correct, there are, in total, 135 yellow flowers. Since the sample space is only the color of flowers, we do not need any additional information except the total amount of flowers there are, as this is the amount that we are taking the yellow flowers from. The total amount of flowers is 315. To find our answer, divide the amount of yellow flowers by the total amount of flowers:
135 divided by 315 = 0.49
Therefore, your answer would be 0.49
Hope this helps!
