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3 years ago

Enter the missing value into the box to complete the ratio comparing 75 centimeters to 3 meters. 1 to

2 answers:

5 0

The ratio for the problem above is one to four. A ratio is a relationship between number which describes how many times the second number contains the first number. The problem above gave two metric unit of length which are the centimeter and meter and the ratio between those two is one to a hundred. Therefore, we have a comparison between two amounts which are 75 and 300 and we can conclude a ratio of one to four.

amm18123 years ago

3 0

I have the same thing in my semester quiz how ironic but it is 0.4 because when you divide 75 centimeters to 3 you end up getting 25 or 0.4 than you subtract it it down drop 25 and you get 0.4

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What is the slope of the line?<br> 3(y - 1) = 2x + 2<br> Choose 1 answer:

fenix001 [56]

Answer:

2/3

Step-by-step explanation:

3(y - 1) = 2x + 2

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3y = 2x + 5

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Does that help?

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4 years ago

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3 years ago

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3 years ago

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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

$n_r=65\%\times 560=\dfrac{65}{100}\times 560=364,$

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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