Y=mx+b
m=slope
b=yint
two points
cost=y
(4,5.5) and (7,7.75)
slope=(y2-y1)/(x2-x1)
slope=(7.75-5.5)/(7-4)=2.25/3=0.75
y=0.75x+b
find b
(4,5.5)
x=4
y=5.5
5.5=0.75(4)+b
5.5=3+b
minus 3 fromboth sides
2.5=b
y=0.75x+2.5
3 hours
y=0.75(3)+2.5
y=2.25+2.5
y=4.75
answer is D
Answer:
She will have $600 in the first five years
Step-by-step explanation:
6000 - 10% = 5400 so it takes 600 and 2% in each year = 10% every 5 years so it is 600
Answer:
n=126
Step-by-step explanation:
25+25x=27
<span>25x=2 </span>
<span>x=2/25 </span>
<span>x=.08 </span>
<span>8%</span>
Answer:
Step-by-step explanation:
I used SI system for units
1)meter
2)kilogram
3)kilogram
4)meter
5)Litre
