The ratio of red to green is 5:6 which means that for every 5 red cars, there are 6 green cars
The ratio of green to blue is 3:10 telling us that for every 3 green cars, there are 10 blue cars.
The ratio 3:10 is equivalent to 6:20 after we multiply both parts by 2. This now says that for every 6 green cars, there are 20 blue cars.
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Let's say we had 5 red cars, 6 green cars and 20 blue cars
Based on that info, we know that the ratio of red to green is 5:6
And the ratio of green to blue is 6:20 which reduces to 3:10
We don't reduce 6:20 to 3:10 however, since that would change the green count from 6 to 3. We want to keep the green count at 6.
So because there are 5 red cars, 6 green cars, and 20 blue cars in this example, and this example points to the proper ratios mentioned earlier, this means that the final answer is 5:6:20. This ratio cannot be reduced or simplified as there are no common factors (other than 1) for 5, 6, and 20.
Answer:
Confidence interval for the population mean is between 15 homes and 19 homes
Step-by-step explanation:
Given that:
Sample (n) = 17 homes, mean (μ) = 19 homes, standard deviation (σ)= 4 people and confidence (C) = 98% = 0.98
α = 1 - C = 1 - 0.98 = 0.02
α/2 = 0.02/2 = 0.01.
The z score of 0.01 (α/2) corresponds to the z score of 0.49 (0.5 - 0.01) which from the normal distribution table is 2.33
The margin of error (E) is:
The confidence interval = μ ± E = 17 ± 2 = (15, 19)
Confidence interval for the population mean is between 15 homes and 19 homes
Answer:
D. 20.
Step-by-step explanation:
- -17 - -37 = 20.
These are all of the steps, to completely, get the correct answer to this question.
Hope this helps!!!
Kyle.
Answer:
U have to say the question or send a picture
Answer:
Let’s use 2 methods to do this:
First, let’s try cross multiplying:
3/4=x/20
2/5=x/20
20 times 3 = 60
60 divided by 4 is 15, so 3/4 = 15/20
20 times 2 = 40
40 divided by 5 is 8, so 2/5 = 8/20
The next method:
What time 4 equals to 20? What times 5 equals to 20?
4 times FIVE equals to 20
For the fraction of 3/4, multiply the numerator and the denominator by five to get your answer of 15/20.
5 times FOUR equals to 20
For the fraction of 2/5, multiply the numerator and the denominator by four to get your answer of 8/20.
Hope I helped!
