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
Step-by-step explanation:
the answer for x = 9
the answer for y = 5
Answer:
Plant 3, Plant 1
Step-by-step explanation:
Answer:
13.95
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Just factor it:
5(42 - 12) = 5(30)