A bag contains hair ribbons for a spirit rally. The bag contains 7 black ribbons and 5 green ribbons. Which is the probability t
1 answer:
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Answer: 18.7 mph
Step-by-step explanation:
We want a unit rate where 1 is in the denominator, so we divide top and bottom by 41.1
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For this case we have the following system of equations:
From the first equation we clear "x":
We substitute in the second equation:
We apply distributive property:
We add similar terms:
We add 65 to both sides:
We divide between 22 on both sides:
We look for the value of the variable "x":
Thus, the solution of the system is:
ANswer: