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Lesechka [4]
3 years ago
7

What is the probability that a randomly chosen student has either blood group A or blood group B?

Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0

Answer: 50%

Step-by-step explanation:

imagine you had a pie and you cut it in half to discover their are two different flavors inside no more no less. by assuming theirs only two flavors how much would you say in percentage you would have...... it would be 50% because just like using quarters if you had 50 cents and 50 cents it would equal out to 100, in this case it would be percent you would say from the 2 groups that only 50 percent of the students would be likely to have that blood group

balu736 [363]3 years ago
6 0

Answer:

0.70

Step-by-step explanation:

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Answer: 300

We know that 5×3=15. Since we are trying to get 1500 we Multiply 300×5 and get 1500.

<u>How do we know?</u>

  • As you can see if you cross out 2 of the 0 in 300 you have 3×5. When you multiply it you get 15.
  • Also if you cross out 1 of the 0 in 300 you have 30×5. When you multiply that you get 150.

As you see when you still multiply either of those problems you have 15 in it. So we should know 300×5=1500.

Note: We can also multiply 500×3 and get 1500. You still get the same answer but just switched numbers.

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