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ira [324]
3 years ago
13

2/5 of the population has blood type A. 23/50 have blood type O. What fraction of the population had either blood type A or O?

Mathematics
1 answer:
emmainna [20.7K]3 years ago
4 0
25/55 people have either A or O
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Help me 3x+1/10=x-1/7 ok so I understand that I'm supposed to cross multiply so 1 x 10=10 7x3=21 so now do i do 21x-7? please He
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Simplify both sides of the equation

3x+1/10 = x+ -1/7

Subtract x from both sides

3x+1/10 -x = x+ -1/7 -x

2x+1/10 = -1/7

Subtract 1/10 from both sides

2x+1/10 - 1/10 = -1/7 -1/10

2x= -17/70

Divide both sides by 2

2x/2 = -17/70/2

x= -17/140

decimal x will equal -0.121


Ask any questions you want and I hope that's help !


8 0
4 years ago
Hey guys is this correct?
lutik1710 [3]

Answer:

Step-by-step explanation:

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3 years ago
What's the perimeter of a rectangular hexagon with one side measures 3 inches​
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