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3 years ago

15

Of the 16 people attending a seminar, 8 have brown hair. What is the probability that a randomly selected person will have brown

hair?

2 answers:

sammy [17]3 years ago

8 0

There are 16 people and 8 have brown hair that is 8/16 or 1/2 or 50%

inessss [21]3 years ago

5 0

Answer:

50%

Step-by-step explanation:

Half of the people have brown hair, this means that 8 people will have 50% of a chance

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10 POINTS!!!!!!!!!!!!

mote1985 [20]

Bigger to smaller I think...

take the smaller length divide by the larger length
1.45/5.8 = 0.25

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3 years ago

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Each person walks to the other person's disc and throws it to the starting point. Where do you think the disc will land?

Vikki [24]

Answer: over the starting point

Step-by-step explanation:

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3 years ago

Kyra has a rock collection. When she puts her rocks into 2 equal plies, there are no rocks left over. When she puts her rocks in

Nat2105 [25]

Step-by-step explanation:

According to this description we need a number that can be divided by 2,3 and 4 since the amount of rocks can be described by a natural number. However if a number is divided by 4 it is divided by 2 as well since 2*2=4.

$\frac{x}{4} = \alpha \\ \frac{x}{2} = 2 \alpha$

If α is a natural number then 2*α is a natural number as well as the product of two natural numbers.

Which means that we need a number devided by 3 and 4.

The smallest number that fulfills this demand is 3*4=12.

Also any product of 12 with any natural number can be devided by 3, 4 and 2.

If the exercise asks for the numbers that are divided only by 2,3 and 4 these are:

${3}^{ \alpha } \times 12 \: and \: {4}^{ \alpha } \times 12 \: \\ where \: \alpha \: belongs \: to \: the \: set \: of \: all \: \\ natural \: numbers$

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3 years ago

Find the distance between the points (-1,-2) and (5,2). Simplified radical form.

frozen [14]

Answer:

2 $\sqrt{13}$

Step-by-step explanation:

Using the distance formula,

$\sqrt{( x_{2}-x_{1} )^2+(y_{2} -y_{1})^2 }$

We just need to plug in the numbers.

So $\sqrt{(-1-5)^2+(-2-2)^2}$

Then we simplify it to

$\sqrt{(-6)^2+(-4)^2} , to \sqrt{36+16}$

Finally, we get

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2 years ago

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coldgirl [10]

Answer:

Consecutive integers:

x

(x+1)

(x+2)

Now your equation is given by sum of the first and twice the third is equal to four times the second decreased by five:

x+2(x+2) = 4(x+1)-5

Step-by-step explanation:

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