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3 years ago

The sum of two numbers is 6 The difference of the two numbers is 3 What are the two numbers.

Mathematics

2 answers:

riadik2000 [5.3K]3 years ago

4 0

Answer:

4.5 and 1.5

Step-by-step explanation:

Let the 2 numbers be x and y with x > y , then

x + y = 6 → (1)

x - y = 3 → (2)

Add the 2 equations term by term to eliminate y, that is

2x + 0 = 9

2x = 9 ( divide both sides by 2 )

x = 4.5

Substitute x = 4.5 into (1) for value of y

4.5 + y = 6 ( subtract 4.5 from both sides )

y = 1.5

The 2 numbers are 4.5 and 1.5

stiv31 [10]3 years ago

3 0

Answer:

4.5 and 1.5

Step-by-step explanation:

4.5+1.5=6

4.5-1.5=3(difference)

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disa [49]

Answer:

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Step-by-step explanation:

Since you didn't provide a picture or anything, I'll happily give you an example!

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If the measure of ORH is 19, then the measure of FSM will also be 19.

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3 years ago

a scientist has 350 mg of radioactive material. the material is cut in half every 2 hours. how much will be left after 10 hours?

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julsineya [31]

We are given

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3 years ago

Someone pls help! Thanks!

dsp73

Answer:

is 1

Step-by-step explanation:

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Answer:

$0.2564\text{ pounds}$

Step-by-step explanation:

The 90th percentile of a normally distributed curve occurs at 1.282 standard deviations. Similarly, the 10th percentile of a normally distributed curve occurs at -1.282 standard deviations.

To find the $X$ percentile for the television weights, use the formula:

$X=\mu +k\sigma$ , where $\mu$ is the average of the set, $k$ is some constant relevant to the percentile you're finding, and $\sigma$ is one standard deviation.

As I mentioned previously, 90th percentile occurs at 1.282 standard deviations. The average of the set and one standard deviation is already given. Substitute $\mu=5$ , $k=1.282$ , and $\sigma=0.1$ :

$X=5+(1.282)(0.1)=5.1282$

Therefore, the 90th percentile weight is 5.1282 pounds.

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