Pls help I’ll give brainliest

Ellen flipped a coin 80 times. the coin landed heads up 44 times and tails up 36 times. what is the experimental probability of

Vaselesa [24]

Answer:

$\frac{9}{20}$

Step-by-step explanation:

experimental probability is the probability of an event occuring when we perform an experiment.

It goes according to the results of the experiment, not the theory behind it.

Probability of landing tails up, therefore, is the number of times it came tails up divided by the total number of times the coin was flipped.

Hence

P (tails) = 36/80 = 9/20

5 0

3 years ago

Read 2 more answers

Please help me with the questions I have please help me with the question mark you as a brnlist

Harlamova29_29 [7]

Answer:

x = 21

Step-by-step explanation:

You can solve this problem by using similar triangles. You can tell that the two triangles are similar by AAA (since two angles are the same, the third must be too).

Now that we've established that the triangles are similar, you need to identify the corresponding sides:

12 corresponds to 28

9 corresponds to x

In order to find x, you'll need to find the scale factor, which you can find by dividing 28 by 12:

28 ÷ 12 = 7/3

Now that you know that 7/3 is the scale factor, you can multiply it by 9 to find x:

9 × 7/3 = x

x = 63/3

x = 21

4 0

3 years ago

Two step equation 7x - 24 = 25 i really need help with this

nekit [7.7K]

Answer:

x = 7

Step-by-step explanation:

move all terms that don't contain x to the right side and solve :)

6 0

3 years ago

Read 2 more answers

An electronics store makes a profit of $72 for every standard CD player sold and $90 for every portable CD sold. the managers ta

Alisiya [41]

s -> no: of standard CD players sold

p -> no: of portable CD players sold.

Profit Per Standard CD player=72$

Profit per Portable CD player =90$

Target Amount =360$

In short: The combined sales of Both the CD player's must exceed or atleast become equal to 360$ to acquire the target.

Thus; the inequality can be stated as:

 72(s) + 90(p) ≥360

-> 36(s) + 45(p) ≥180

-> 12(s) +15(p) ≥ 90

 _______________

->| 4(s) + 5(p) ≥ 30 |

Hope it helps...

Hope it helps...Regards;

Hope it helps...Regards;Leukonov/Olegion.

8 0

3 years ago

Negative 3 over 4 times negative 12

Ludmilka [50]

Answer:

9

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers