Answer:
(a) 0.4 or 40%
(b) 0.1 or 10%
Step-by-step explanation:
(a) If you get 4 "ones" after 10 rolls of the die, the proportion of the rolls that resulted in "ones" is:
(b) If you get 2 "ones" after 20 rolls of the die, the proportion of the rolls that resulted in "ones" is:
Answer: [B]: " (-6, 9) " .
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Explanation:
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Given the following system of equations:
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x + y = 3 ;
y = 9 ;
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Substitute "9" for "y" in the first equation; to solve for "x"; we already have our value for "y" ; "y = 9 " ; (given) ;
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x + 9 = 3 ;
Subtract "9" from EACH side of the equation;
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x + 9 − 9 = 3 − 9 ;
to get:
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x = -6 .
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Check our answer:
x + y = 3
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-6 + 9 =? 3 ? Yes!
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The answer for the system of equations is:
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x = -6, y = 9 ; or, write as: (-6, 9) .
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which is: Answer choice: [B]: " (-6, 9) " .
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It will take 60 minutes, 1 hour
Answer:
Option A for part A and $79 for part B
Step-by-step explanation: