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3 years ago

40 students walk to school.

Mathematics

1 answer:

vodka [1.7K]3 years ago

7 0

Answer:

The answer is 5/8

Step-by-step explanation:

$p = \frac{25}{40} \\ p = \frac{5}{8}$

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Please show your work and explain it.

Maru [420]

Answer:

$f(x)=\dfrac{x+2}{2(x-2)}$

Step-by-step explanation:

Remember when you divide fractions, you need to get the reciprocal of the divisor and multiply. So your first simplification would be:

$\dfrac{x^2+4x+4}{x^2-6x+8}\div\dfrac{6x+12}{3x-12}\\\\=\dfrac{x^2+4x+4}{x^2-6x+8}\times\dfrac{3x-12}{6x+12}\\\\=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}$

Next we factor what we can so we can further simplify the rest of the equation:

$=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}\\\\=\dfrac{(x+2)(x+2)(3x-12)}{(x^2-6x+8)(6(x+2))}\\\\$

We can now cancel out (x+2)

$=\dfrac{(x+2)(3x-12)}{(x^2-6x+8)(6)}$

Next we factor out even more:

$=\dfrac{(x+2)(3)(x-4)}{(x-2)(x-4)(6)}$

We cancel out x-4 and reduce the 3 and 6 into simpler terms:

$=\dfrac{(x+2)(1)}{(x-2)(2)}$

And we can now simplify it to:

$=\dfrac{x+2}{2(x-2)}$

6 0

3 years ago

The distance between mumbai and dubai is about 1940 km if the cruising speed of the emirates flight is 595 km/hr how long does i

inna [77]

Answer:

3.26 hours

Step-by-step explanation:

speed = distance / time

595 = 1940 / t

t = 1940 / 595 = 3.26 hours

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3 years ago

Help plzzzzzzzzzzz I will give branniest

Agata [3.3K]

Answer:

Set 1 Angle A is 90

Set 1 Angle B is 45

Set 2 Angle B is 15

Set 2 Angle C is 90

Set 1 Angles A and C are both 62

Set 2 Angles B and D are both 120

Step-by-step explanation:

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2 years ago

Geometry help plzzzz

tatyana61 [14]

Answer:

x=12

Step-by-step explanation:

3x-6=30

plus 6 both sides

3x=36

divide 3 both sides

x=12

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3 years ago

The population of Baltimore was 520,000 in 2000. Now its 750,000. What was the change in population? What was the precent of cha

wariber [46]

The change is 230,000 people.

4 0

3 years ago

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