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Mice21 [21]
3 years ago
11

Find the missing digit x:8 = 15:6

Mathematics
1 answer:
Jet001 [13]3 years ago
7 0

Answer:x=20

Step-by-step explanation:

x/8=15/6

Cross multiply

6x=120

Divide through by

x=20

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Convert 0.75 into a fraction
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Use distributive property
3/4x + 5 1/2*3/4 = 5/8
Convert 5 1/2 into improper fraction
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Multiply
3/4x + 33/8 = 5/8
Subtract 33/8 from both sides
3/4x = 5/8 - 33/8
Subtract the numerators but NOT the denominators
3/4x = -28/8
Divide 3/4 on both sides
x = -28/8 divided by 3/4
Convert the division sign to multiplication while flipping the fraction 3/4 to 4/3
x = -28/8 * 4/3
Multiply
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