3 years ago

A two digit number less than 30 is written down at random. What is the probability that it Will be a prime number?

Mathematics

1 answer:

kobusy [5.1K]3 years ago

4 0

Answer:

there are 20 2 digit numbers less than 30.

out of all of them 6 are prime

then there is only a 6/20 chance that it will be a prime number, or a 30% chance.

You might be interested in

Find the perimeter of this triangle. 10 cm 17 cm 8 cm 21 cm P = [ ?] cm

8_murik_8 [283]

Answer:

perimeter=21+17+10

=48cm

6 0

3 years ago

Solve for x: 4 over x equals 5 over 10

julsineya [31]

Answer:

x = 8,

Step-by-step explanation:

$\displaystyle \frac{4}{x} = \frac{5}{10}$ .

$x \ne 0$ for it is a denominator. Multiply both sides with the product of the two denominators: $10\;x$ :

$\displaystyle \frac{4}{x}\cdot (10\; x) = \frac{5}{10}\cdot (10\;x)$ .

$40 = 5\; x$ .

Multiply both sides by one over the coefficient of x:

$\displaystyle \frac{1}{5} \times 40 = \frac{1}{5}\times 5\; x$ .

$x = 8$ .

8 0

4 years ago

Read 2 more answers

Write y=-1/2x+1 in standard form using integers

dimaraw [331]

X + 2y = 2

If you need an explanation, let me know.

4 0

3 years ago

Read 2 more answers

3xy - 4y when y =2 and x =5

Dmitry_Shevchenko [17]

Basically plug in 2 where y is and 5 where X is
3(5)(2) - 4(2) , the parentheses are there to multiply
30-8
22

8 0

3 years ago

Read 2 more answers

Please help I’ll give Brainly

Charra [1.4K]

Answer:

The last choice

Step-by-step explanation:

5^2 + 12^2 = 13^2

25 + 144 = 169

7 0

3 years ago

Read 2 more answers