David has a stack of 30 cards, which are numbered 1 through 30. what is the exact probability of randomly selecting a card from the stack with a number that is even or is less than 10?
1 answer:
Answer:
1/3 or 1:3
Step-by-step explanation:
since there is a 10/30 chance
to simplify divide by 2
10/30 ÷ 2/2 = 5/15
then divide by 5
5/15 ÷ 5/5 = 1/3
your answer is 1/3
another simple way to simplify
since there is a zero (0) in both the ones (1s) spot on both the numerator and denominator in 10/30, you may just cross out both zeros (0s) to simplify the value
10/30 simplified/taken away 0s = 1/3
hope this helps:)
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31.
Step-by-step explanation:
5+5 = 10 + 1 = 11
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I don't know I tried to see if that was the pattern. It checks out math wise.
