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chubhunter [2.5K]
2 years ago
8

3 x 5 = 15 Write a related multiplication fact.

Mathematics
1 answer:
Talja [164]2 years ago
3 0

The related multiplication fact to 3 x 5 = 15 is 4 x 3 = 12

<h3>Multiplication Facts</h3>

Given:

3 x 5  =  15

The expression a x b = c means that a is added to itself b times to give c

3x 5 means adding 3 in 5 places

That is:

3 x 5 = 3 + 3 + 3 + 3 + 3

A related multiplication fact is:

4 x 3 = 12

This is true because:

4 x 3 = 4 + 4  + 4  = 12

Learn more on multiplication facts here: brainly.com/question/10873737
#SPJ1

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2 years ago
If the sales tax is 7% how much tax will u pay on a cd that costs 15$
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What to multiply 2/3 by
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3 years ago
Log10 (2x + 1) - logio(3x - 2) = 1​
Pavlova-9 [17]

Answer: x=3/4

Step-by-step explanation:

To solve, first express the left side as one logarithm. To do so, apply the quotient rule which is log_bM/N=log_bM-log_bN .

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Then, express the equation to its equivalent exponential form to eliminate the logarithm.

Note that the exponential form of log_b M=a is M=b^a .

Since the base of the logarithm in the given equation is not written, it indicates that its base is 10.

So re-writing the equation, it becomes:

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And its exponential form is:

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Now that the equation has no more logarithm, the next step is to remove the x in the denominator.

To do so, multiply both sides by 3x-2.

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2x+1=30x-20

Next, combine like terms.

To combine 30x and 2x, bring them together on one side of the equation. So, move 2x to the right side by subtracting both sides by 2x.

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1=28x-20

To combine 20 and 1, bring them together on the side opposite the term with x. So, add both sides by 20.

1+20=28x-20+20

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And, divide both sides by 28 to have x only at the right side.

21/28=(28x)/28

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Hence, the solution to the given equation is x=3/4 .

3 0
3 years ago
What is the simplest form of the ratio 40:16?
Svetlanka [38]
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Hope this helps!
3 0
3 years ago
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