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postnew [5]
3 years ago
14

Isaac bought seven new magic cards to add to his collection this year the next day he gave half his entire collection to his fri

ends there are now only 21 cards left how many cards did he start with
Mathematics
2 answers:
Klio2033 [76]3 years ago
8 0
21x2= 42 + 7 =49
I think this would be the answer
OverLord2011 [107]3 years ago
3 0

Answer:

35 cards

Step-by-step explanation:

21x2=42

42-7=35

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The correct hypothesis that can be set up for this test is given as

H0: mu = 5.8

Ha: mu ≠ 5.8

<h3>What is a statistical hypothesis?</h3>

This is the method of inference that is made in a statistical testing in order to know if the dat available is able to support the claims that have been made.

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Read more on hypothesis here:

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4 0
2 years ago
Of 1414 possible​ books, you plan to take 55 with you on vacation. how many different collections of 55 books can you​ take?
Svetach [21]
Divide 1414 by 55 and you get 25.7 but you can't take .7 collections so the correct answer is 25 collections of 55 books
4 0
3 years ago
Find the value of x when lines w and v are parallel.
VladimirAG [237]

Answer: B. 17

Step-by-step explanation:

4x-3 = 65

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BOOM!

4 0
3 years ago
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A 25-foot tall flagpole casts a 42-foot shadow. What is the angle (to the neasrest tenth of degree) that the sun hits the flagpo
Maurinko [17]
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8 0
3 years ago
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Sav [38]

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Step-by-step explanation:

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\frac{1}{11}

So therefore your answer would be 11.

6 0
2 years ago
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