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vlabodo [156]
3 years ago
10

robert is trying to collect all the cards of a special collectors edition set of hockey cards. He has 18 cards, which is 40% of

the set. How many cards are in the selection? How many more cards does he need?
Mathematics
1 answer:
Digiron [165]3 years ago
6 0

Answer:

27

18 is 40% have 18 is 9 9 is 20% 18 + 9 equals 27 and you already have 40 18 + 18 is 80% all you need is 20 more percent which is 9

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Help T-T plz (14 points)
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The answer is 10.5 or 10 1/2

Step-by-step explanation:

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Answer: #7 D) neither set. #6. C) the sum of the data values must be 75. #5. The 6th missing temperature must be 80 degrees

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#5. The median of the original set is 72 degrees. In order to find the missing number you need to do some check and guess. Take the original median and add a number relatively close to the other numbers, for example 75, then add the two numbers together, 72+75=147. Then divide that by two, 147 divided by 2= 73.5 which is not the correct median number, its too low, so experiment with higher numbers and repeat the same process until you find a number that, if added to 72, totaled, and then divided by 2 equals 76.

I really hope this helped :)

7 0
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