Answer:
Rate in still water = 27.5 mph
Current's rate = 12.5 mph
Step-by-step explanation:
Let
x mph = row team rate in still water
y mph = current's rate
<u>Upstream:</u>
Distance = 30 miles
Time = 2 hours
Rate = x - y mph
Then
<u>Downstream:</u>
Distance = 30 miles
Time = 45 minutes 
hour
Rate = x + y mph
Then
From the first equation:
From the second equation:
Add these two equations:
Subtract these two equations:
Answer:
<u>
3.582</u>
Step-by-step explanation:
Find the number in the thousandth place 2 and look one place to the right for the rounding digit 3
. Round up if this number is greater than or equal to 5 and round down if it is less than 5
.
3.582
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From x=1 to x=5
x=1 is starting time
x=time
y=mx+b
m=slope
b=yintercept
slope=(y2-y1)/(x2-x1)
for points (x1,y1) and (x2,y2)
(1,52000) and (5,116000)
slope=(116000-52000)/(5-1)=64000/4=16000
y=16000x+b
find b
(1,52000)
52000=16000(1)+b
52000=16000+b
minus 16000 from both sides
36000=b
the equation is
y=16000x+36000
at 12 years, x=12
y=16000(x)+36000
y=16000(12)+36000
y=192000+36000
y=228000
sales at year 12 is $228,000
There were 199 trees that produced the harvest. 5 trees would produce 1050 oranges.
Answer:
-5b^4 - b^3
Step-by-step explanation:
-b^3 (3b + 1) – 2b^4
Distribute
-3b^4 - b^3 -2b^4
Combine like terms
-5b^4 - b^3
