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3 years ago

Que es una fracción

Mathematics

2 answers:

fenix001 [56]3 years ago

4 0

Answer:

ROBLOX USERNAME ZAW1031

Step-by-step explanation:

lbvjy [14]3 years ago

4 0

Answer:

Una fracción representa una parte de un todo o, más generalmente, cualquier número de partes iguales. Cuando se habla en inglés cotidiano, una fracción describe cuántas partes de un determinado tamaño hay, por ejemplo, la mitad, ocho quintos, tres cuartos.

Step-by-step explanation:

(Encantado de ayudar)

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Marcy and Lucia had lunch at a restaurant. The bill for the lunch was $24 and they gave the waitress an 18% tip.

Serggg [28]

Your answer is letter
D.
$28.32

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3 years ago

Read 2 more answers

Hw 28 shades figure

ra1l [238]

Answer:

Prat 9) $SF=2, x=16\ in$

Part 10) $SF=0.5, x=14\ ft$

Part 11) $SF=0.5, x=3.5\ ft$

Part 12) $SF=3, x=7\ m$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

SF-----> the scale factor

a----> area of the shaded figure

b----> area of the unshaded figure

$SF^{2} =\frac{x}{y}$

Problem 9) we have

$a=216\ in^{2}$

$b=54\ in^{2}$

substitute in the formula

$SF^{2}=\frac{216}{54}$

$SF^{2}=4$

$SF=2$ ------> the scale factor

To find the value of x, multiply the length of the unshaded figure by the scale factor

$x=(2)(8)=16\ in$

Problem 10) we have

$a=161\ ft^{2}$

$b=644\ ft^{2}$

substitute in the formula

$SF^{2}=\frac{161}{644}$

$SF^{2}=0.25$

$SF=0.5$ ------> the scale factor

To find the value of x, multiply the length of the unshaded figure by the scale factor

$x=(0.5)(28)=14\ ft$

Problem 11) we have

$a=10.5\ ft^{2}$

$b=42\ ft^{2}$

substitute in the formula

$SF^{2}=\frac{10.5}{42}$

$SF^{2}=0.25$

$SF=0.5$ ------> the scale factor

To find the value of x, multiply the length of the unshaded figure by the scale factor

$x=(0.5)(7)=3.5\ ft$

Problem 12) we have

$a=4,590\ m^{2}$

$b=510\ m^{2}$

substitute in the formula

$SF^{2}=\frac{4,590}{510}$

$SF^{2}=9$

$SF=3$ ------> the scale factor

To find the value of x, divide the length of the shaded figure by the scale factor

$x=(21)/(3)=7\ m$

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3 years ago

N x 6/9 = 3/12 what is N?

rusak2 [61]

1

Simplify n\times \frac{6}{9}n×96 to \frac{2n}{3}32n

\frac{2n}{3}=\frac{3}{12}32n=123

2

Simplify \frac{3}{12}123 to \frac{1}{4}41

\frac{2n}{3}=\frac{1}{4}32n=41

3

Multiply both sides by 33

2n=\frac{1}{4}\times 32n=41×3

4

Simplify \frac{1}{4}\times 341×3 to \frac{3}{4}43

2n=\frac{3}{4}2n=43

5

Divide both sides by 22

n=\frac{\frac{3}{4}}{2}n=243

6

Simplify \frac{\frac{3}{4}}{2}243 to \frac{3}{4\times 2}4×23

n=\frac{3}{4\times 2}n=4×23

7

Simplify 4\times 24×2 to 88

n=\frac{3}{8}n=83

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3 years ago

Round 128703 to the nearest thousand

Brilliant_brown [7]

Answer:

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3 years ago

If a die is rolled 40 times, there are 640 different sequences possible. The following question asks how many of these sequences

RideAnS [48]

Answer:

0.1433

Step-by-step explanation:

<h3>All possibilities:</h3>

The total number of different sequences in 40 rolls of a die is $6^{40}$

<h3>Exactly five 1s in 40 rolls:</h3>

The 1s may occur at any 5 rolls among 40. The number of ways of exactly five 1s occuring is therefore, equivalent to number of ways of selecting 5 fruits from 40 distinct fruits which is ⁴⁰C₅ ways. These 5 rolls have a fixed outcome 1. Other 35 rolls each have 5 possible outcomes : 2 or 3 or 4 or 5 or 6. So, the number of possible sequences of outcomes on other 35 rolls of the die is $5^{35}$ .

⇒The total number of different sequences having exactly five 1s in 40 rolls of a die is (⁴⁰C₅)×( $5^{35}$ )

∴The fraction of the total number of sequences having exactly five 1s is $\frac{(⁴⁰C₅)×([tex]5^{35}$ )}{ $6^{40}$ }[/tex] ≈ 0.1433

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3 years ago