You didn’t give enough info is there a picture of some sort?
3(-1) + 9= -3 + 9= 6 that's the answer
Answer:
31 scientific calculators
54 graphing calculators
Step-by-step explanation:
X = number of $15 calculators
Y = number of $67 calculators
X+Y = 85 then X = 85-Y
15X+67Y = 4083
substitute for X
15(85-Y)+67Y = 4083
1275 - 15Y + 67Y = 4083
reduce
52Y = 2808
Y = 54
X = 31
X=number of the chairs y=the total cost of chairs
150/50=3$ y=3x