Company A: y=6x+12
Company B: y=5x+15
x is the variable for how many windows they clean.
A:
y=6(8)+12
y=48+12
y=60
B:
y=5(8)+15
y=40+15
y=55
Company B charges less for 8 windows.
A:
y=6(6)+12
y=36+12
y=48
B:
y=5(6)+15
y=30+15
y=45
Company B charges $3 less than Company a to clean 6 windows.
Each term is increasing by *3
Next three terms:
6, 18, 54
The length of the swimming pool is, 230 centimeters in length, and 216 centimeters in width. How I got my answer.
I first divided 446÷2=223, then I subtracted 223-7=216, that's width. Now I realise that there is 7 remaining, so I added 223+7=230, that's length!!
So to double check my work I added the width and length together, 216+230=446.
I hope this helps!
Answer: The estimate is greater than the actual mass.