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andreev551 [17]
3 years ago
8

A triangle has dimensions 3,4, and 5. A similar triangle is drawn with a scale factor of 2. What are the dimensions of the new t

raingle?
Mathematics
1 answer:
kumpel [21]3 years ago
7 0
5,8, and 10 because you're scale factor is by 2, so you multiply your originals by the scale factor<span />
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The difference between two numbers is 9. find the two numbers if the larger number is 4 times the smaller
Lady_Fox [76]
X= smaller number
4x= larger number


SMALLER NUMBER
4x - x= 9
combine like terms

3x= 9
divide both sides by 3

x= 3


LARGER NUMBER
4x= 4(3)= 12


ANSWER: The smaller number is 3 and the larger number is 12

Hope this helps! :)
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3 years ago
The percent of area associated with z = 1.4 is ____%
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The answer is A. 38.49
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Answer:

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3 years ago
A board is 50 inches long. How long is it in feet and inches?
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3 years ago
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Of 560 marbles in a bag, 65% are red and the rest are blue. After 28 red marbles are replaced with blue ones, how many blue marb
jonny [76]

Answer:  The answer is 400  blue marbles.


Step-by-step explanation: Given that there are 560 marbles in a bag, out of which 65% are red and rest are blue.

So, number of red marbles is

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and number of blue marbles is

n_b=560-364=196.

Now, if 28 red marbles are replaced by blue marbles, the the new number of red and blue marbles will be

n_r^\prime=364-28=336~~~\textup{and}~~~n_b^\prime=196+28=224.

Now, to get 65% of the marbles blue, we need to add some more blue marbles to the bag. Let 'x' number of blue marbles are added to the bag, then

65\%\times (560+x)=224+x\\\\\Rightarrow \dfrac{65}{100}\times (560+x)=224+x\\\\\Rightarrow 13(560+x)=20(224+x)\\\\\Rightarrow 7280+13x=4480+20x\\\\\Rightarrow 7x=2800\\\\\Rightarrow x=400.

Thus, 400 blue marbles need to be added to the bag.


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4 years ago
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