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poizon [28]
3 years ago
6

According to a certain​ country's department of​ education, 39.4​% of​ 3-year-olds are enrolled in day care. What is the probabi

lity that a randomly selected​ 3-year-old is enrolled in day​ care?
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:

0.394

Step-by-step explanation:

Given:

Percent of 3 year-olds enrolled in daycare = 39.4%

The above statement means that if the total number of 3 year-olds is 100, then out of the 100 persons aged 3 years, the number of persons enrolled in a daycare is 39.4.

Now, probability of an event is the ratio of the favourable outcomes for that event to the total number of outcomes.

Here, the favourable number of outcomes is the number of persons aged 3 years enrolled in a daycare which is equal to 39.4.

The total number of outcomes is the total number of 3 year-olds which is 100.

Therefore, the probability that a randomly selected​ 3-year-old is enrolled in day​care is given as:

P(enrolled)=\frac{39.4}{100}=0.394

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Step-by-step explanation:

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2 years ago
Please help me!!! i will gladly give brainliest :)
True [87]

Given:

ΔONP and ΔMNL.

To find:

The method and additional information that will prove ΔONP and ΔMNL similar by the AA similarity postulate?

Solution:

According to AA similarity postulate, two triangles are similar if their two corresponding angles are congruent.

In ΔONP and ΔMNL,

\angle ONP\cong \angle MNL       (Vertically opposite angles)

To prove ΔONP and ΔMNL similar by the AA similarity postulate, we need one more pair of corresponding congruent angles.

Using a rigid transformation, we can prove

\angle NOP\cong \angle NML

Since two corresponding angles are congruent in ΔONP and ΔMNL, therefore,

\Delta ONP\sim \Delta MNL        (AA postulate)

Therefore, the correct option is A.

8 0
2 years ago
Read 2 more answers
If the perimeters of each shape are equal, which equation can be used to find the value of x?
Brums [2.3K]

Answer:

(x+2) + x + (x+4) = 2(1/2) + 2(x+3)

Step-by-step explanation:

They are equal to each other and the rectangle has 2x more perimeter

The triangle would be divided in half from that rectangle.

Sorry If this is confusing I am not very good at explaining things.

4 0
3 years ago
Twelve large bottles of water cost nine dollars how many bottles can u buy for 3 dollars<br><br>​
DerKrebs [107]

Answer:

answer is 4

Step-by-step explanation:

12 / 3

7 0
2 years ago
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Can someone help and show the work please
Snowcat [4.5K]

Answer:

<h2><em>A = 75 in²</em></h2>

Step-by-step explanation:

We have the rectangle and the right triangle.

The formula of an area of a rectangle:

<em>A = lw</em>

<em>l</em> - length

<em>w </em>- width

We have <em>l = 10 in</em> and <em>w = 5 in</em>. Substitute:

<em>A = (10)(5) = 50 in²</em>

The formula of an area of a triangle:

<em>A = 1/2 bh</em>

<em>b</em> - base

<em>h</em> - height

We have <em>b = 5 in</em> and <em>h = 5 in + 5 in = 10 in</em>. Substitute:

<em>A = 1/2(5)(10)=1/2(50)=25 in²</em>

The area of figure:

<h3><em>A = 50 in² + 25 in² = 75 in²</em></h3>
3 0
3 years ago
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