Answer:I believe your answer should be C: 23/15
Step-by-step explanation:
So you add 11/15 and 12/15 since the common denominator is already 15 you only need to add the numerator which is 11 and 12 and 11+12= 23 thus you get 23/15
The gcf of 170 and 210 is 10.
Well x = 4 and y = -3 so what we would do is plug in the numbers like this.
6 x 4-3 x -3 = 20
Then lets break down the problem.
6x4=24 and 3x-3=-9
Now plug those numbers into our equation.
24 - (-9)=20
Then figure out the problem.
24 - (-9) = 33
So the x,y is wrong.
Number of ways = 7C6*11C7*5C2
<span>= 7*330*10 </span>
<span>= 23100</span> <span>C(7, 6)*C(11, 7)*C(5, 2) = 23,100
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