Answer
-3
+
+16=0
Step-by-step explanation:
Answer:
8.37
Step-by-step explanation:
Answer:
x=7
y=9
Step-by-step explanation:
x+7y=70 ...(1)
3x-6y=-33
divide by 3
x-2y=-11 ...(2)
(1)-(2) gives
x+7y-x+2y=70+11
9y=81
y=9
x-2*9=-11
or x=-11+18=7
I would either use a histogram or a frequency chart, but histogram is easier and neater