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AleksAgata [21]
3 years ago
8

PLEASE HELPPPP

Mathematics
2 answers:
Elena-2011 [213]3 years ago
7 0

Answer:

T=40-3H

Step-by-step explanation:

Troyanec [42]3 years ago
5 0
Answer= T=40-3H

Explanation:
You might be interested in
There are 4 quarters, 5 nickels and 3 dimes in a jar. One coin is randomly drawn,
vagabundo [1.1K]

Answer:

\displaystyle\frac{5}{36}

Step-by-step explanation:

Probability is used to find how likely an outcome is to happen. Probability can be expressed as a fraction with the total outcomes as the denominator and the number of successful outcomes (what you want to happen) as the numerator.

Sample Size

The sample size is the number of possible outcomes. In this case, the sample size will be the total number of coins. To find the sample size we need to add together all of the coins.

  • 4 + 5 + 3 = 12

This means that the sample size is 12. For this type of probability, the sample size will serve as the denominator for each probability.

Replacement

In the question, it is stated that coins are replaced. This means that the sample size will not change at any point. So, the denominator will be the same for every probability.

Creating Probability Fractions

We are looking for the probability of getting a quarter and nickel, so we need to find the fractions that represent both situations.

First, let's find the quarter. As stated in the first paragraph, the number of successful outcomes is the numerator. There are 4 quarters, so 4 is the number of successful outcomes. Therefore, 4 will be the numerator. Then, 12 will be the denominator because 12 is the sample size.

  • \displaystyle\frac{4}{12}

Next, we need to find the probability of a nickel. Since there are 5 nickels, there are 5 successful outcomes. Then, the sample size is still 12 because there is replacement.

  • \displaystyle\frac{5}{12}

Complex Probability

Now we have the probability of both a quarter and nickel alone. However, this question asks about the probability of both, so this is an example of complex probability. To find complex probability, you have to multiply each probability together.

  • \displaystyle\frac{4}{12} *\frac{5}{12}=\frac{20}{144}

To reach the final answer we have to simplify the answer.

  • \displaystyle\frac{20}{144} =\frac{5}{36}

This means that the probability of pulling a quarter and then a nickel is 5/36.

3 0
2 years ago
Note: Figure not drawn to scale.
ycow [4]

Answer:

this is very simple

its 2342423424324343

Step-by-step explanation:

4 0
3 years ago
How many inches is each slice of pizza?
mariarad [96]

Hey!


First, let's find the area. The formula for finding area of a circle is: π · r²


Radius is ½ of the diameter. Divide the diameter by 2 to get the radius.


d = 18

18 ÷ 2 = 9


r = 9

r² = 9 × 9 = 81


The area of the whole pizza is 81π. There are 10 slices. Divide the area of the whole pizza by 10 to find the area of 1 slice.


81π ÷ 10 = 8.1π


<em>That means each slice is 8.1π inches²</em>

4 0
3 years ago
Read 2 more answers
Simplify <br><br>1/4 (8 m-4 n) + 1/3 (6 m+ 3 n).<br><br>answers<br><br>-4m<br><br>1/4m<br><br>4m​
hammer [34]
1/4(8m - 4n) + 1/3(6m + 3n)=

Distribute the fractions through the parentheses

2m - n + 2m + n =

Combine like terms

2m + 2m - n + n = 4m

The answer is 4m
3 0
3 years ago
What is the mean absolute deviation for the set of data below?<br><br> 2, 8, 10, 16
Evgesh-ka [11]

Solution: We are given below data:

2, 8, 10, 16

Now to find the mean deviation, we use the below formula:

MD= \frac{\sum|X-\bar{X}|}{N}

Where:

\sum,  represents the summation

X, represents the observation.

\bar{X}, represents the mean

N represents the number of observation.

\bar{X}= \frac{\sum{X}}{N}= \frac{2+8+10+16}{4}=9

\sum |X-\bar{X}| = |2-9| + |8-9| +|10-9| +|16-9|=7+1+1+7=16

Therefore, the mean deviation is:

MD= \frac{16}{4}

        = 4

5 0
4 years ago
Read 2 more answers
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