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jeka57 [31]
3 years ago
12

The ratio of the number of people who own a cat to the number of people who own a dog is 5:7. If there are 12 more people who ow

n a dog than who own a cat, how many people own a cat?
Mathematics
1 answer:
topjm [15]3 years ago
6 0

Answer:

30 people own a cat

Step-by-step explanation:

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18. What is the area of a piece of garden plot 5 yards 2 feet long by 6 yards 1 foot wide? Give your answer in square feet.
34kurt

Answer:

<h2>C. 323 ft²</h2>

Step-by-step explanation:

1 yard = 3 feet

5yd 2ft = (5)(3)ft + 2ft = 17ft

6yd 1ft = (6)(3)ft + 1ft = 19ft

The formula of an area of a rectangle:

A = wl

w - width

l - length

Substitute w = 19ft and l = 17ft:

A = (19)(17) = 323 ft²

5 0
3 years ago
The average maximum monthly temperature in Campinas, Brazil is 29.9 degrees Celsius. The standard deviation in maximum monthly t
velikii [3]

Answer:

3.84% of months would have a maximum temperature of 34 degrees or higher

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 29.9, \sigma = 2.31

What percentage of months would have a maximum temperature of 34 degrees or higher?

This is 1 subtracted by the pvalue of Z when X = 34. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{34 - 29.9}{2.31}

Z = 1.77

Z = 1.77 has a pvalue of 0.9616

1 - 0.9616 = 0.0384

3.84% of months would have a maximum temperature of 34 degrees or higher

8 0
3 years ago
Why is Wikipedia not considered to be a credible source?
UNO [17]

Answer: b

Step-by-step explanation:

3 0
3 years ago
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3.6x107<br> (2.5x106) (1.6x103)
denis23 [38]

Answer:

16822454.4 is the answer

6 0
3 years ago
Why do scientists use the international system of units (SI)
k0ka [10]
So it can be known anywhere. So we use all of the same measurements
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3 years ago
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