Answer: fRACTION: 1/2
Step-by-step explanation: Decimal: 0.5
Percent: 50
Answer:
32 percent
Step-by-step explanation:
8,000×400÷100
2n+5...a couple is two people so you need to multiply the number of couples, n, by 2 to get the total number of dancers. Then add the total number of organizers.
It is A so you have it right
add the two equations together
5a+5b=25
-5a+5b=35
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0 + 10b =60
divide by 10
b=6
5a + 5b = 25
5a +5(6) = 25
5a +30 =25
subtract 30 from each side
5a =-5
divide by 5
a = -1
Answer (-1,6)
or a=-1 b=6