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Tomtit [17]
3 years ago
9

There are 20 rows of seats on the concert hall:25 seats are in the 1st row

Mathematics
1 answer:
lapo4ka [179]3 years ago
7 0

Answer:

20x25=500 10x25+10×25=500

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The volume of a cube is 8in to the 3 how long is each side
Alex777 [14]
It is 24in cube value 8 times 3 equals 24
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3 years ago
Sari has 3 times as many pencil erasers asSam. Together they have 28 erasers. How many erasers does Sari have?
wel

3x +x = 28

4x = 28

x = 28/4 = 7

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3 years ago
Fram Algebraic expression for the following<br>a)Two times a number increase by three​
Effectus [21]

Answer:

2x + 3

Step-by-step explanation:

Let the number be x

2x + 3

Hope it helps :)

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3 0
2 years ago
Find the value of x when 6 - 4x = 6x - 8x + 12
seraphim [82]

Answer:

x = -3

Step-by-step explanation:

Step 1: Write out equation

6 - 4x = 6x - 8x + 12

Step 2: Combine like terms (x)

6 - 4x = -2x + 12

Step 3: Add 4x on both sides

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Step 5: Divide both sides by 2

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Step 6: Rewrite

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8 0
2 years ago
Read 2 more answers
Many consumer groups feel that the U.S. Food and Drug Administration (FDA) drug approval process is too easy and, as a result, t
Zigmanuir [339]

Answer:

If we reject the null hypothesis based on the evidence, then our  conclusion should be Option c.

If we do not reject the null hypothesis based on the evidence, then our  conclusion should be Option a.

Step-by-step explanation:

We are given that the FDA wants to set up a hypothesis test to show that the new drug is safe before approving it by assuming it to be unsafe.

So, Null hypothesis, H_0 = New drug is unsafe

 Alternate Hypothesis, H_1 = New drug is safe

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There is sufficient evidence to believe that the new drug is safe because rejecting null hypothesis means that alternate hypothesis is accepted with required evidence.

<em>And If we do not reject the null hypothesis based on the evidence, then our  conclusion should be that : </em>

There is insufficient evidence to believe that the new drug is safe because not rejecting null hypothesis means that we are not ready with enough evidence to assume that new drug is safe.

5 0
3 years ago
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