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xeze [42]
1 year ago
9

Venn diagram in maths ! !

Mathematics
1 answer:
iren [92.7K]1 year ago
4 0

Answer:

People surveyed: 79

a) p(s) = 46/79

b) p(snv) = 13/79

c) p(suv) = 96/79

hope this helps, and tell me if you get it right! It's prob wrong though, im bad at venn diagrams (×_×)⌒☆

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Mark read 2 1/2 books last week. This week he read 3 1/3 books. How many more books did Mark read this week and last week?
nikklg [1K]

Answer:

5/6 books

Step-by-step explanation:

We know that Mark read 2 1/2 books last week. This week, he read a bit more with 3 1/3 books.

To find how many more books he read, we must subtract 2 1/2 from 3 1/3:

3 1/3 - 2 1/2

Let's convert these into improper fractions first:

3 1/3 = (3 * 3 + 1) / 3 = 10/3

2 1/2 = (2 * 2 + 1) / 2 = 5/2

Now, we have:

10/3 - 5/2

In order to subtract these, we must find a common denominator. For 2 and 3, the LCM is 6, so we can use that as our common denominator:

10/3 * 2/2 = 20/6

5/2 * 3/3 = 15/6

Finally, we have:

20/6 - 15/6 = (20 - 15) / 6 = 5/6 books

5 0
3 years ago
Does anyone know what to do for this equation? 40 of $2.40= ?
wolverine [178]

Answer:

0.96 or .96

Step-by-step explanation:

40 divided by 100 = 0.4 to change the percent to a decimal

and multiply 2.40 to 0.4, 0.4 times 2.40 is 0.96 or .96

3 0
3 years ago
The lengths, in inches, of adult corn snakes are normally distributed with a population standard deviation of 6 inches and an un
liubo4ka [24]

Answer: 2.460

Step-by-step explanation:

The formula of Margin of Error for (n<30):-

ME=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 18

Level of confidence = 0.90

Significance level : \alpha=1-0.90=0.1

Using the t-distribution table ,

Critical value : t_{n-1, \alpha/2}=t_{17,0.05}= 1.7396

Standard deviation: \sigma=\text{ 6 inches }

Then, we have

ME=( 1.7396)\dfrac{6}{\sqrt{18}}\approx2.460

Hence, the margin of error (ME) of the confidence interval with a 90% confidence level = 2.460

5 0
3 years ago
A container holds 1/4 gallon of oil . Jonathan is changing the oil in his car and needs 5 containers. How many gallons of oil do
Karolina [17]
If he only filled up five containers, then he would only have one and 1/4 gallons of oil
8 0
3 years ago
There is a line whose y-intercept is 7 and whose slope is 8. What is its equation in slope-intercept form?
Annette [7]
Answer:
y = 8x + 7

Explanation:
The equation of the line in slope-intercept form has the following general formula:
y = mx + c
where:
m is the slope of the line = 8
c is the y-intercept = 7

Substitute with the givens in the above formula to get the slope of the line as follows:
y = mx + c
y = 8x + 7

Hope this helps :)
4 0
2 years ago
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