If x=n then it would have 2 solutions because it would be x^2 = c which has a positive and negative solution but idk if that is what you are asking for
Answer:
A
Step-by-step explanation:
8 gallons of regular gas with 10% and 2 gallons with 85%
8 x 10 =80%
2 x 85 =170%
170+80=250%
10 gallons each with 100%, so 10 x 100 =1000%
250% of 1000% = 1/4 or 25% ethanol
Hope this helps!
X + y = 24
x - y = 2
Adding both equations
2x = 26
x = 13
y = 11
Since six necklaces all together costs 31.80 to make, I divided 31.80 by 6 and got 5.3. That means that to make one necklace, they'd spend $5.30. The beads alone for 1 necklace cost $2.70, so I subtracted that from the $5.30.
Answer: Each pendant costs $2.60
