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iragen [17]
3 years ago
8

In complete sentences, explain how to draw a double number line representing a 1:4 ratio.

Mathematics
2 answers:
Yuri [45]3 years ago
6 0

<u>Answer:</u>

<u>ratios equivalent to 1/3=2/6,3/9</u>

<u></u>

<u>Step-by-step explanation:</u>

<u></u>

<u>Double number line is a diagram used when. quantities have different units.</u>

<u></u>

<u>It shows each of the quantities on its own number line with corresponding pairs of values lined up.The values of each number line are not the same unless there is a 1:1 ratio between them.</u>

<u></u>

<u>some ratios equivalent to 1:3 are;</u>

<u></u>

<u>2:6,3:9,4:12,5:15,6:18,7:21,etc</u>

expeople1 [14]3 years ago
4 0

Answer:ratios equivalent to 1/3=2/6,3/92:6,3:9,4:12,5:15,6:18,7:21,

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Answer:

There are 26 purple marbles in the bag.

Step-by-step explanation:

1) We have purple (p) and blue (b) marbles in a bag, and 41 marbles total so:

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3) Our problem gives us an expression for the purple marbles in terms of the blue,  let's write it using math symbols instead of words:

<em>"The number of purple marbles is 4 less than 2 times the number of blue marbles."</em>

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3) Now we're going to plug this in (or substitute it) for our p in our first equation, and solve for b

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2b = 45 - b         ( add 4 to both sides)

3b = 45               (add b to both sides)

b = 15                  (divide both sides by 3)

4, last step!)

Now we know we have 15 blue marbles, that's great! But we still want to know how many purple marbles we have.

41- 15 = 26 purple marbles

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