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Drupady [299]
2 years ago
7

-15x-19=124 show how you got it please and show what to do with -15x plz!!!

Mathematics
2 answers:
Olegator [25]2 years ago
8 0
You divide the 15x by the 124. I know it sounds weird because you'll get a decimal, but that is what you are supposed to do because 124 is not a factor of 5.
KonstantinChe [14]2 years ago
5 0
Add 19 to both sides. -15x-19+19=124+19.
Then, simplify which is -15x=143.
Third, divide both sides with -15. so Then it will look like this= -15x/-15=143/-15.
After that, you simplify which is - 143/15 
so answer is - 143/15

Hope this helps!

Junesong71
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Step-by-step explanation:

The total number of ways to form the two teams is the combination of choosing 10 people out of 35 (₃₅C₁₀). The number of possibilities that A and B are both on the 10-people team is given by the combination of choosing 8 people (since two are fixed) out of 33 (₃₃C₈).The number of possibilities that A and B are both on the 25-people team is given by the combination of choosing 10 people out of 33 (₃₃C₈).

Therefore, the probability that two particular people A and B will be on the same team is:

P = \frac{_{33}C_8+_{33}C_{10}}{_{35}C_{10}} \\\\P=\frac{\frac{33!}{(33-8)!8!}+\frac{33!}{(33-10)!10!} }{\frac{35!}{(35-10)!10!}} \\\\P=\frac{69}{119} = 0.5798

The probability is 0.5798 or 57.98%.

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2 years ago
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