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To solve ratio problems you must:
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EX: 1 : 2 = X : 20 - CORRECT ANSWERS ✔✔EXAMPLE: 1 : 2
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= X : 20
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1. Set up the ratios into fractions so you can cross
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multiple.
1/2 = x/20 |\ |\
2. Cross multiply to solve for x.
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2x = 20x1 |\ |\
2x = 20 |\ |\
3. Divide both sides by 2 to solve for X.
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2x = 20 --> 1x = 10 --> x = 10
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4. Answer:|\ |\
|\ 1 : 2 = 10 : 20
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Complete the ratio |\ |\
|\ 2 : 5 = X : 20 - CORRECT ANSWERS ✔✔X = 8
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(8) : 20 |\ |\
2 : 5 = 8 : 20
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,Complete the ratio |\ |\
|\ 3 : 10 = X : 100 - CORRECT ANSWERS ✔✔X = 30
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(30) : 100 |\ |\
3 : 10 = 30 : 100
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Complete the ratio |\ |\
3 : 8 = 18 : X - CORRECT ANSWERS ✔✔X = 48
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18 = (48) |\ |\
3 : 8 = 18 : 48
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Complete the ratio |\ |\
7 : 8 = 35 : X - CORRECT ANSWERS ✔✔X = 40
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35 = (40) |\ |\
7 : 8 = 35 : 40
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Complete the ratio |\ |\
|\ .25 : 100 = X : 500 - CORRECT ANSWERS ✔✔X = 1.25
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(1.25) : 500 |\ |\
.25: 100 = 1.25 : 500 |\ |\ |\ |\ |\
Complete the ratio |\ |\ |\
, .35 : 90 = X : 540 - CORRECT ANSWERS ✔✔X = 2.1
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(2.1) : 540 |\ |\
.35 : 90 = 2.1 : 540
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Complete the ratio |\ |\ |\
12 : 15 = 23.4 : X - CORRECT ANSWERS ✔✔X = 29.25
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23.4 : (29.25) |\ |\
12 : 15 = 23.4 : 29.25
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Complete the ratio |\ |\ |\
3 : 6 = 2.5 : X - CORRECT ANSWERS ✔✔X = 5
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2.5 : (5) |\ |\
3 : 6 = 2.5 : 5
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Complete the ratio |\ |\ |\
2 : 7 = X : 21 - CORRECT ANSWERS ✔✔X = 6
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(6) : 21
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2 : 7 = 6 : 21
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Complete the ratio |\ |\ |\
2.2 : 13 = 5.6 : X - CORRECT ANSWERS ✔✔X = 33.09
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5.6 : (33.09)
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