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aliya0001 [1]
3 years ago
14

Select all ratios equivalent to 3:4.

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
7 0

Answer:

18:24

18:24

15:20

15:20

Step-by-step explanation:

Because 18/3:24/3 = 3:4

Also, 15/5:20/5 = 3:4

riadik2000 [5.3K]3 years ago
4 0
18:24
18:24
15:20
15:20
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What’s the product of 10/1 and 17/5 simplified?
Andru [333]

Answer:

34

Step-by-step explanation:

10/1×17/5

note: 10/1=10

10×17/5

multiply

170/5

34 ans

pls mark brainliest

4 0
2 years ago
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minute
fredd [130]

Answer:

0.0322; 0.9929

Step-by-step explanation:

Since the data is normally distributed, we use z scores for these probabilities.

The formula for a z score of a sample mean is

z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}

For the sample of mildly obese people, the mean, μ, is 371; the standard deviation, σ, is 65; and the sample size, n, is 6.

Using 420 for X,

z = (420-371)/(65÷√6) = 49/(65÷2.4495) = 49/26.5360 ≈ 1.85

Using a z table, we see that the area under the curve to the left of this is 0.9678.  However, we want the area to the right, so we subtract from 1:

1-0.9678 = 0.0322

For the sample of lean people, the mean, μ, is 528; the standard deviation, σ, is 108; the sample size, n, is 6.

Using 420 for X, we have

z = (420-528)/(108÷√6) = -108/(108÷2.4495) = -108/44.0906 ≈ -2.45

Using a z table, we see that the area under the curve to the left of this is 0.0071.  We want the area under the curve to the right, so we subtract from 1:

1-0.0071 = 0.9929

7 0
3 years ago
What is the relationship between the ratios?
Lesechka [4]

Answer:

NOT PROPORTIONAL

Step-by-step explanation:

The given two fractions are: $ \frac{5}{8} $ and $ \frac{8}{10} $.

Proportional fractions are those which have the same value when to reduced to the simplest form.

Consider two fractions $ \frac{p}{q} $ and $ \frac{x}{y} $.

We say they are proportional if $ p : q = x : y $.

Or, if $ py = qx $ then we can say the fractions are proportional.

Here the fractions are:  $ \frac{5}{8} $ and $ \frac{8}{10} $.

LHS: 5 X 10 = 50.

RHS: 8 X 8 = 64.

Clearly they are not equal. So, we can say these two fractions are not proportional.

5 0
3 years ago
Factorise 3+81x³y³ step by step explanation​
Delicious77 [7]

Answer:

3(1+27x^3,y^3)

Step-by-step explanation:

3 is a GCF between the two terms, remove it and any other GCFs, in this case the term 3 doesn’t have any x’s or y’s. the only thing that can be removed from this equation is 3.

7 0
3 years ago
Need help asap. Simplify the expression 6/c+4/c^2 show work
Zina [86]

By taking a common denominator, we can find out that the simplified expression of the given expression is \frac{6c+4}{c^{2} } .

The given expression is -

\frac{6}{c}+\frac{4}{c^{2} } ---- (1)

We have to simplify the expression.

From equation (1), we have the given expression as -

\frac{6}{c}+\frac{4}{c^{2} }

Establishing common denominator c^{2}, we have

\frac{6c}{c^{2} }+\frac{4}{c^{2}}

Combining the numerator and common denominator, we have

\frac{6c+4}{c^{2} }

Thus, the simplified expression of the given expression is \frac{6c+4}{c^{2} } which is obtained by taking a common denominator.

To learn more about simplified expression visit brainly.com/question/22860327

#SPJ1

7 0
1 year ago
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