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blsea [12.9K]
3 years ago
8

Solve. M/9 = 8 A m = 1.1 B m = 17 C m = 27 D m = 72

Mathematics
1 answer:
Eddi Din [679]3 years ago
3 0

Answer:

D. m=72

Step-by-step explanation:

So

  1. M/9=8
  2. To get rid of the 9, you have to multiply both sides by 9
  3. M/9 ×9=8×9
  4. M=8×9
  5. 8×9=72
  6. M=72
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Pre Algebra
Maslowich

Answer:

A. 36

B. 3.5

Step-by-step explanation:

To solve for the first equation, we could represent the hot dogs as h(1.75-.50), since they are losing .50 cents for each hot dog, <em>h,</em> they make.

Since they want to know how many hot dogs they have to sell to equal the amount of money they spent, we can represent it as an equal sign.

Now all we have to do is add the constants. Add 12 to our overall equation and subtract 57, since the <u>received</u> $12 in donations and <u>lost</u> $57.

Our equation is 12+h1.75=57+.5h We can just put all of the negative numbers on one side and the positive numbers on the other to find out when they will be equal.

First, subtract 12 from 57.

h1.75=45+.5h

Now subtract .5h from both sides.

h1.25=45

Finally, divide both sides by 1.25.

h=36.

They will have to sell 36 hot dogs.

If they want to sell halve the hotdogs for the same price, simply multiply the current price by 2.

The hotdogs will have to cost $3.5.

Hope this helps!

4 0
4 years ago
HELP ME PLEASEE
babymother [125]

From the given discrete distribution, we have that:

\mu = 2.13, \sigma^2 = 0.61, \sigma = 0.78

<h3>What are the mean, the variance and the standard deviation of a discrete distribution?</h3>
  • The mean of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.
  • The variance is given by the sum of the difference squared between each observation and the mean, divided by the number of values.
  • The standard deviation is the square root of the variance.

In this problem, the distribution is:

P(X = 1) = \frac{2}{8}

P(X = 2) = \frac{3}{8}

P(X = 3) = \frac{3}{8}

Hence, the mean is:

\mu = 1\frac{2}{8} + 2\frac{3}{8} + 3\frac{3}{8} = \frac{17}{8} = 2.13

The variance is:

\sigma^2 = (1-2.13)^2\frac{2}{8} + (2-2.13)^2\frac{3}{8} + (3-2.13)^2\frac{3}{8} = 0.61

The standard deviation is:

\sigma = \sqrt{0.61} = 0.78

More can be learned about discrete distributions at brainly.com/question/24855677

4 0
2 years ago
I want to know how to solve for X and what the answer is.
Anna11 [10]

Answer: it’s 71

Step-by-step explanation:

4 0
2 years ago
What is the value of Negative 3 m n + 4 m minus 3 when m = 2 and n = negative 4?
Ivanshal [37]

Answer:

Step-by-step explanation:

-3(2)(-4)=24

24+4(2)=32

32-3=29

5 0
4 years ago
Help Please. <br><br> 2x(3+x) = 9 <br><br> How do I simplify this using the distributive principle.
Llana [10]

<u>Answer:</u>

2x²+6x-9=0

<u>Step-by-step explanation:</u>

2x(3+x)=9

6x+2x²=9

2x²+6x-9=0

6 0
3 years ago
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