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3 years ago

What's 20/30 times 24/30?

Mathematics

1 answer:

AURORKA [14]3 years ago

8 0

It equals 8/15. You simplify the fractions, and then just multiply across the top and bottom.

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Part 1

andreev551 [17]

Answer:

see explanation

Step-by-step explanation:

Part 1

The n th term of a geometric sequence is

$a_{n}$ = a $(r)^{n-1}$

where a is the first term and r the common ratio

Given $a_{6}$ = 128, then

a $(2)^{5}$ = 128, that is

32a = 128 ( divide both sides by 32 )

a = 4 ← first term

Part 2

$a_{21}$ = 4 $(2)^{20}$ = 4 × 1048576 = 4194304

6 0

3 years ago

a bag contains 5 blue, 8 red, and 7 green marbles. a marble is selected at random. find the probability the marble is not red

Alchen [17]

3/5 is the same as 12/20 which is not red over total

6 0

3 years ago

Read 2 more answers

Divide (12n^3+8n^2-6n)/2n^2

nexus9112 [7]

$\frac{12n^{3} + 8n^{2} - 6n}{2n^{2}} = \frac{12n^{3}}{2n^{2}} + \frac{8n^{2}}{2n^{2}} - \frac{6n}{2n^{2}} = 6n + 4 - \frac{3}{n}$

8 0

3 years ago

Twelve and twenty nine hundredths in number form

kobusy [5.1K]

Answer:

12.29

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Work out the angle of x please answer ASAP!!

geniusboy [140]

Given:

The figure of a pentagon.

To find:

The value of the x.

Solution:

We know that, the sum of all interior angles of a pentagon is 540 degrees. So,

$(5x-25)+(6x+25)+(6x-3)+(9x)+(7x+15)=540$

$(5x+6x+6x+9x+7x)+(-25+25-3+15)=540$

$33x+12=540$

Subtract both sides by 12.

$33x+12-12=540-12$

$33x=528$

Divide both sides by 33.

$x=\dfrac{528}{33}$

$x=16$

Therefore, the value of the x is 16.

6 0

3 years ago