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3 years ago

What does 4/7x35= plz tell me

Mathematics

2 answers:

trapecia [35]3 years ago

6 0

$\frac{4}{7} \times 35 = 4 \times \frac{35}{7} = 4 \times 5 = \huge{\boxed{20}}$

horrorfan [7]3 years ago

5 0

Basically divide by 7 times 4
35/7= 5
5 times 4= 20

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The sides of a triangle are 7, 4, n. If n is an integer, state the largest and smallest possible values of n.

EastWind [94]

Answer:

11 > n > 4

Step-by-step explanation:

Given any two sides of a triangle, we now that the sum of such sides MUST be greater than the measure of the remaining side. This is, given the three sides a, b and c, it must be that:

a + b > c

a + c > b

b + c > a

For our case:

7 + 4 > n (1) ---> 11>n

7 + n > 4 (2)

4 + n > 7 (3)

The 1 inequality says that the n side MUST be less than 11.

Now, pick the (3) inequality and subtract 4 in both sides:

4 + n -4 > 7 - 4

n > 3

So, the n side must be grater than 3.

Thus, the solution is:

11 > n > 3

As we are working with integers we now that the grater integer larger than 3 is 4, and the greater integer less than 11 is 10. So, the side must be equal or greater to 4 and equal or less than 10:

10 >= n >= 4

7 0

3 years ago

It took 30 minutes for Melinda to run 4 miles<br> (Find the unit rate and explain what they mean)

zhannawk [14.2K]

Each mile took 7.5 minutes. So we did this by dividing 30 by 4. Hope this helped you :)

5 0

3 years ago

Read 2 more answers

Help plzzz Thx thx thx

Semenov [28]

9m * 10m + 9m * 30 m

= 9m * ( 10m + 30m)

= 9m * 40m

= 9m * 4 * 10m

= 36m * 10m

= 360 m²

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360 metres²

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3 years ago

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You are planning a survey of starting salaries for recent computer science majors. In the latest survey by the National Associat

Ymorist [56]

Answer:

A sample size of 285 is needed.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.025 = 0.975$ , so Z = 1.96.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Standard deviation is $4300

This means that $\sigma = 4300$

What sample size do you need to have a margin of error equal to $500 with 95% confidence?

A sample size of n is needed. n is found when M = 500. So

$M = z\frac{\sigma}{\sqrt{n}}$

$500 = 1.96\frac{4300}{\sqrt{n}}$

$500\sqrt{n} = 1.96*4300$

$\sqrt{n} = \frac{1.96*4300}{500}$

$n = 284.1$

Rounding up

A sample size of 285 is needed.

3 0

3 years ago

Bonds issued by Animite Energy are selling at a rate of 95. 230. Which of the following statements is true for a bond of par val

Ber [7]

The statements which is true for a bond of par value $1,000 is that the market value includes a discount of $47. 70.

<h3>What is market value?</h3>

Market value is the current price of a product, company, or something consorting to the stock of the market.

It is the price which is required to buy something in the current market.

Bonds issued by Animite Energy are selling at a rate of 95.230. This is the bond percentage of the Animite energy in the market. This means if someone wants to buy 95.230 of this company's bond, then he get $100.

Now for the 1000 bonds, the amount required is,

$C=95.230\times10\\C=952.30$

Hence, for the 1000 bonds, the amount required is 952.30. Therefore, the discount will be,

$d=1000-952.30\\d=47.70$

Hence, the statements which is true for a bond of par value $1,000 is that the market value includes a discount of $47. 70.

Learn more about the market value here;

brainly.com/question/8084221

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2 years ago