All categories

2 years ago

Can you help me? Please show how you work it out

Mathematics

1 answer:

qaws [65]2 years ago

8 0

Swimmers: 50 children ÷ 12 = 4.2 (you can't have a decimal so you must round up)

5 adults are need.

Dancers: 32 children ÷ 15 = 2.1 (you can't have a decimal so you must round up)

3 adults are need.

Minimum number of adults needed is: 5 for swimmers + 3 for dancers = 8 adults

You might be interested in

GEOMETRY! PLEASE HELP ME OUT GUYS. I WILL GIVE ALL MY PTS AND BRAINLIEST!

topjm [15]

Answer:

CBA is a secant.

Step-by-step explanation:

7 0

2 years ago

(NO LINKS)!~Brainliest IF YOU CAN SIMPLIFY AND SOLVE FOR THE UNKNOWN~!(3 + 5)² + [8 - 11] + Z = 4(Z - 2)

OleMash [197]

Answer:

(3+5) = 8 times 8 = 64 64+(8-11)+Z=64+(-3) + Z=62+z= 62+2 = 64

Step-by-step explanation:

7 0

2 years ago

What are the odds of picking 26 consecutive bingo balls out of a bag and not drawing any Bs, each letter of bingo has 15 balls,

Bezzdna [24]

Answer:

0.00069104 approximately.

Step-by-step explanation:

You must first calculate the probability of not taking a ball with the letter B.

It would be the sum of the probabilities of taking I, N, G and O.

The probability of getting the letter I would be 15/75, that is 1/5. The same would be for the letter N, G and O. Since the 4 probabilities are equal.

Therefore it would remain (1/5) * 4 = 4/5.

Then the probability of not drawing a letter B would be 4/5.

However, in the case that it does not go out for 26 balls and that the ball that was taken out is not taken into account. It would be the multiplication of all events, that is:

(60/75) * (59/74) * (58/73) * (57/72) * ... * (35/50)

The result would be 0.00069104 approximately.

8 0

3 years ago

Find the values of x and y.

timurjin [86]

Answer:

x= 38

y= 71

Step-by-step explanation:

The triangle shown in the figure is an isosceles triangle, a triangle having two sides equal.

The two sides marked with a "dash" are said to be equal.

If we label off the triangle as ABC with AD being the extended length (containing 108°).

We'll get,

AB = AC

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

*Property*

"If two sides of a triangle are equal their corresponding base angles are equal too."

=> ∠BAC = ∠BCA . . . . (¡)

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

From the figure, ∠BCA is equal to y.

*Property*

"Two angles on a straight line sum up to 180°"

∠BAC can be found out by subtracting 109° from the straight angle (180°).

=> ∠BAC = 180 - 109

=> ∠BAC = 71°

Substituting these values in eqn. (¡):

71 = y

Hence, the value of y is 71°

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

*Property*

"The exterior angle(angle on the extended side) of a triangle is equal to the sum of it's interior opposite angles."

Here,

Interior angles = x and y (= 71)
Exterior Angle = 109°

=> 109 = x + 71

=> 109 - 71 = x

=> x = 38°

Hence, the value of x is 38°.

4 0

2 years ago

A fair coin has 2 sides (heads and tails) that are equally likely to show when the coin is flipped. A person claims that if you

MissTica

Answer:

This is a theoretical probability

Step-by-step explanation:

Explanation:-

Theoretical probability:-

Theoretical probability is the theory behind probability.To find the probability of an event using theoretical probability,it is not required to conduct an experiment.

The theoretical probability is defined as the ratio of the number of favorable outcomes to the number f possible outcomes.

probability of event(P(E)= $\frac{no.of favorable outcomes}{no.of possible outcomes}$

Empirical probability:-

The definition of probability breaks down when do not have a complete priori analysis , that is when the outcomes of the trial are not equally likely or when the total number of trials is infinite or when the enumeration of all equally likely events is not possible.so this is called statistical or empirical definition of probability or experimental probability.

Probability of event P(E) = $\frac{no.of times that event occurs}{total number of trials}$

The basic difference between these two approaches is that in the experimental approach,the probability of an event is based on what has actually happened by conducting a series of actual experiments and the theoretical approach we attempt predict what will occur without actually performing the experiments.

Given example is equally likely events so this is theoretical probability.

8 0

3 years ago