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2 years ago

3.23 x 1,000? really need your help, plz help me

Mathematics

2 answers:

natima [27]2 years ago

7 0

Answer:

3,230

Step-by-step explanation:

JulsSmile [24]2 years ago

4 0

Answer: 3,230

Explanation: when multiplying a decimal by a power of 10, simply count the number of zeroes in the power of 10, then move the decimal point that many places to the right to find the answer. Notice that 1,000 has three zeroes and when we multiply 3.23 by 1,000, our decimal point moves three places to the right giving us 3,230.

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15 is 30% of what number?

Kisachek [45]

0.5 times 100 = 50... 50 is your answer

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3 years ago

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Problemas de razonamiento división de números decimales. Ayer Susana se fue de viaje a visitar a unos familiares. Recorrió 135,7

schepotkina [342]

Usando las relaciones entre velocidad, distancia y tiempo, se encuentra que ella condujo a una velocidad media de 90,5 km/h.

--------------------------

La <u>velocidad </u><u>es la distancia dividida por el tiempo</u>, por lo que:

$v = \frac{d}{t}$

Total de 135,75 km, o sea, $d = 135,75$
Llego en 1,5 horas, o sea, $t = 1,5$

La velocidad es:

$v = \frac{d}{t} = \frac{135,75}{1,5}$

División de decimales, o sea, seguimos multiplicando los números por 10 hasta que ninguno sea decimal:

$v = \frac{135,75}{1,5} = \frac{1357,5}{15} = \frac{13575}{150} = 90,5$

Ella condujo a una velocidad media de 90,5 km/h.

Un problema similar es dado en brainly.com/question/24558377

4 0

1 year ago

PLS PLS HELP I HAVE A D IN MATH AND NEED HELP GETTING MY GRADE UP

Ipatiy [6.2K]

Answer:

1/6 bcause

Step-by-step explanation:

it is a 4 by 3 block so if your going to count cont by the side answe is 1/6

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2 years ago

Compare the surface area-to-volume ratios of the moon and mars. express your answer using two significant figures.

antoniya [11.8K]

we know that

For a spherical planet of radius r, the volume V and the surface area SA is equal to

$V=\frac{4}{3} *\pi *r^{3} \\ \\ SA=4*\pi *r^{2}$

The
ratio of these two quantities may be written as

$SAV =\frac{(4*\pi*r^{2})}{(\frac{4}{3}*\pi*r^{3})} \\ \\ SAV =\frac{3}{r}$

we know

$rMoon=1,738Km\\ rMars=3,397 Km$

$\frac{SAV Moon}{SAV Mars} =\frac{3}{rMoon} *\frac{rMars}{3} \\ \\ \frac{SAV Moon}{SAV Mars} =\frac{rMars}{rMoon} \\ \\ \frac{SAV Moon}{SAV Mars} =\frac{3,397}{1,738} \\ \\ \frac{SAV Moon}{SAV Mars} =1.9545$

therefore

the answer is

$1.9$

5 0

3 years ago

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I need help with area homework

aksik [14]

Answer:

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2. 9.6

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5. 169

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14. id k

15. a. 21

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d. 31.5

Step-by-step explanation:

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2 years ago