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3 years ago

Find the LCM of 18 and 20.

1 answer:

6 0

Answer: 180

Multiples of 18: 18, 36, 54, 72, 90, 108, 126, 144, 162, 180

Multiples of 20: 20, 40, 60, 80, 100, 120, 140, 160, 180

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The sum of the digits of a certain two-digit number is 13. Reversing its digits decreases the number by 45. Find the number..

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Answer:

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3 years ago

In the United States nearly 8 x 10^9 text messages are sent everymonth About how many text messages is this! Find the primefacto

iris [78.8K]

$8\times10^9=2^{12}\times5^9$

1) Since in the USA 8 x 10 ^9 messages are sent every month, that means that approximately 8 billion messages are sent.

2) We can Prime factorize it:

Note that on the right side we've picked only prime numbers. In this case, 2 and 5.

So we can rewrite 8 x 10^9 as prime factors.

$8\times10^9=2^{12}\times5^9$

3) Hence, the answer is:

$8\times10^9=2^{12}\times5^9$

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1 year ago

Missing fraction<br> blank + 1/16 = 3/2

skad [1K]

Answer: 1/2

Step-by-step explanation:

Let the missing fraction be x

x + 1/16 = 3/2

Make x the subject by subtracting both sides by 1/16

x = 3/2 - 1/16

x= 24 - 16/16

= 8/16; divide through by a common value of 8

x = 1/2

I hope this helps.

4 0

3 years ago

HELP MEE :)) PLEASEEE <3

Mandarinka [93]

<h3>Volume of the cylinder:</h3>

$v = \pi {r}^{2} h$

$v = 3.14 \times {2}^{2} \times 3$

$v = 37.68 \: {cm}^{3}$

<h3>Volume of the rectangular prism:</h3>

$v = lwh$

$v = 6 \times 5 \times 7$

$v = 210 \: {cm}^{3}$

<h3>Total volume:</h3>

$v = 37.68 + 210$

$v = 247.68 \: {cm}^{3}$

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2 years ago

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Answer:

I am.

Step-by-step explanation:

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3 years ago

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