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aev [14]
3 years ago
9

The sum of two numbers is 25. One number is twice the second number plus seven. What are the two numbers ?

Mathematics
1 answer:
Hoochie [10]3 years ago
4 0

Answer:

the two numbers are 19 and 6

Step-by-step explanation:

so we know that there are two numbers that added together give us 25

x+x=25


one of the numbers is twice the amount of the second plus 7

(2x+7)+x=25


simplify 2x+7+x

3x+7=25


subtract 7 from both sides

3x=18


divide 3 by both sides

x=6


and there is your answer.

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Step-by-step explanation:

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Darya [45]

Answer:

Correct option: (D).

Step-by-step explanation:

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A Type I error is the probability of rejection of the null hypothesis of a test when indeed the the null hypothesis is true.

The type I error is also known as the significance level of the test.

It is symbolized by P (type I error) = <em>α</em>.

In this case the researcher wants to determine whether the absorption rate into the body of a new generic drug (G) is the same as its brand-name counterpart (B) or not.

The hypothesis for this test can be defined as:

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6 0
2 years ago
Elmer has a collection of 300300300 fossils. Of these, 21\%21%21, percent are fossilized snail shells.
aleksandrvk [35]
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3 0
3 years ago
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Usimov [2.4K]
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5 0
3 years ago
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Gwar [14]

Answer:

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Width = 20*3= 60cm

5 0
2 years ago
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