Answer: bsbshshs cuz u shehsjejejeje
Step-by-step explanation:shshdhdhd
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She has totally 10+5+3=18 marbles, so the probability is 10/18=5/9. The complement is (9-5)/9=4/9.
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The answer is: [B]: (13, -5) .
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Explanation: Using Substitution:
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y = 8 − x ;
7 = 2 − y ;
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Solve for "x" and "y" using using substitution;
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Take the second equation given:
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7 = 2 − y ;
And considering the first equation given: " y = 8 − x " ;
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Substitute the value: "8 − x" for (the value of "y" in the first equation given), in order to solve for "x" ;
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7 = 2 − y ;
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7 = 2 − 8 − x ;
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7 = -6 − x ;
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Add "6" to EACH side of the equation:
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7 + 6 = -6 − x + 6 ;
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to get: 13 = -x ;
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13 = -x ; ↔ -x = 13 ; ↔ -1 x = 13 ;
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Divide EACH side of the equation by "-1 " ; to isolate "x" on one side of the equation; and to solve for "x" ;
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-1 x / -1 = 13 / -1 ;
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x = 13 . At this point, the only answer choice that can be correct is answer choice: "[B]: (13, -5)" ; since it is the only answer choice given with a solution of x = 13;
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Nonetheless, we shall continue.
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Now that we have the solution for "x"; "x = 13"; We shall plug this value into, or "SUBSTITUTE" this value, "13", for "x", into the first equation given, " y = 8 − x " ; to find the value of "y" ; as follows:
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y = 8 − x ;
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y = 8 − 13 ;
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y = -5 .
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So, we have x = 13; and y = -5; or write as: (13, -5) . This solution corresponds directly which answer choice: [B]:
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Also, to confirm, let us plug in our solved value for "y", which is "-5" ; into our second equation, to see if the equation holds true:
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7 = 2 − y ;
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7 =? 2 − (-5) ?? ;
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7 =? 2 + 5 ? ? Yes !
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Answer:B
Step-by-step explanation:
-16 + 5n = -7(-6 + 8n) + 3 Given
-16 + 5n = 42 - 56n + 3 Distribute
-16 + 5n = 45 - 56n Collect like terms
61n = 61 Add 56n to the left side and add 16 to the right side
n = 1 Divide 61 from both sides
The answer is n = 1. Remember that when you have a number beside two or more numbers in parentheses, you have to distribute, or multiply the number outside the parentheses by each number inside the parentheses.
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