All categories

3 years ago

Find the smallest number which is exactly divisibleby 15 20 and 30

Mathematics

1 answer:

Svetach [21]3 years ago

7 0

Answer:

Step-by-step explanation:

The smallest number that is divisible by 15, 20 , and 30, must have the needed factors of each of these numbers:

15 = 3 * 5

20 = 2 * 2 * 5

30 = 2 * 3 * 5

Then the minimum common factor must have the following factors to satisfy the divisibility of all of the numbers above:

2 * 2 * 3 * 5 = 60

You might be interested in

What is the distance between the following points?

timama [110]

Answer:

D. d = $\sqrt{58}$

Step-by-step explanation:

Use the distance formula: d = $\sqrt{(x2 - x1)^{2}+ (y2 - y1)^{2} }$

The two points are (6, -2) and (3, -9)

Plug the values into the formula:

d = $\sqrt{(3 - 6)^{2}+ (-9 + 2)^{2} }$

Simplify

d = $\sqrt{(-3)^{2}+ (-7)^{2} }$

d = $\sqrt{9+ 49 }$

d = $\sqrt{58}$

I hope this helps :))

5 0

3 years ago

A research firm conducts a sample survey and discovers that 90% of people are more afraid of snakes than they are of flying. If

nikitadnepr [17]

Answer:

Different values of margin of error for different significance level.

Step-by-step explanation:

We are given the following in the question:

p = 90% = 0.9

Sample size, n 790

We have to find the margin of error.

Formula:

$z_{stat}\sqrt{\dfrac{p(1-p)}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting values, we get,

$ME = \pm 1.96\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME = \pm 0.021$

$z_{critical}\text{ at}~\alpha_{0.10} = 1.64$

$ME = \pm 1.64\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME =\pm 0.018$

$z_{critical}\text{ at}~\alpha_{0.10} = 2.58$

$ME =\pm 2.58\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME =\pm 0.028$

7 0

4 years ago

A ferris wheel has a radius of 50 feet, how many feet would it take to go around the entire ferris wheel (the circumference)?

motikmotik

Answer: 314.16 or 100 pie

Step-by-step explanation:

2(50)pie

3 0

3 years ago

Read 2 more answers

List two common factors of 36 and 48

larisa86 [58]

36: 1,2,3, 4,6,9,12,18,36
48: 1,2,3,4,6,8,12,16,24,48

4 0

3 years ago

Read 2 more answers

Can I get some help ???

Nikitich [7]

Answer is D. 288 . i am glad to help

4 0

3 years ago

Find the smallest number which is exactly divisibleby 15 20 and 30​

Find the smallest number which is exactly divisibleby 15 20 and 30