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3 years ago

There are 12 girls and 18 boys who want to participate in a team challenge,

Mathematics

2 answers:

aksik [14]3 years ago

8 0

Answer is 6 because you cant fit 30 and three is alot

kvasek [131]3 years ago

4 0

Answer:

1st Question) 6 teams!

2nd Question) 2 girl's teams, 3 boy's teams

Step-by-step explanation:

6 is the greatest number that can be divided into both of 12 and 18! :) Hope this helps! <3

12/6 = 2

18/6 = 3

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I don't understand this

Taya2010 [7]

The answer to the problem is B.

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4 years ago

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In parallelogram ABCD, AD = 12 in, m∠C = 46º, m∠DBA = 72º. Find the area of ABCD

dmitriy555 [2]

Answer:

The area of parallelogram ABCD is $78.42 \mathrm{in}^{2}$

Explanation:

Given:

AD = 12 in

$m \angle C=46^{\circ}$

$m \angle D B A=72^{\circ}$

To Find:

The area of parallelogram ABCD=?

Solution:

When we construct the parallelogram with the given data, we get a parallelogram formed by 12 cm as one side and an angle with 46 degrees.

The area of the parallelogram can be calculated by $a b * \sin (a n g l e)$

Substituting the value of a=12 we have

$\text { Area of parallelogram }=12 * \text { bsin } 46$

<u>To find the value of b, </u>

We know that area of a triangle can be expressed as,

$\text { Area of triangle }=(A b / 2) \sin (\text {angle})$

So,

$(12 * B D / 2) * \sin 46=(A B * B D / 2) * \sin 72$

Cancelling BD and 2 on both sides we get,

$12 * \sin 46=A B * \sin 72$

$A B=12 * \frac{\sin 46}{\sin 72}$

Therefore,

$b=\frac{12 \sin 46}{\sin 72}$

Substituting the value of b,

$=12 *\left(\frac{12 \sin 46}{\sin 72}\right) * \sin 46$

=78.42

So the area of the parallelogram is $78.42 \mathrm{in}^{2}$

6 0

3 years ago

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What is the answer to this question

Schach [20]

Vertical angles are equal

4x = 45 + 15
4x = 60
x = 60/4
x = 15

8 0

3 years ago

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Please help I don’t want to fail!!

Gnesinka [82]

I can’t see the screen

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3 years ago

I thought of a two-digit number. The unit digit of my number is a prime number, and the tens digit is four times as big as the u

sergiy2304 [10]

<h3>Answer: 82</h3>

====================================================

Explanation:

Let A be the tens digit and B be the units digit

We can write the number as AB. So if A = 9 and B = 2 for instance, then the number is AB = 92. Keep in mind I'm not multiplying A and B here.

"The unit digit is a prime" means B could be any of these values {2,3,5,7}. We only list the single digit primes. The value 1 is not prime.

Now multiply each of those items by 4

4*2 = 8

4*3 = 12

4*5 = 20

4*7 = 28

Of those results, only 4*2 = 8 leads to a single digit answer.

This must mean that A = 8 and B = 2

Therefore the number is AB = 82.

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3 years ago