Answer:
3mph
Step-by-step explanation:
Boat speed x
current speed 2
against current x-2 mph
with current x+ 2 mph
Distance= 5 miles
Time against + time with = 6 hours
5 /( x + 2 ) + 5 /(x - 2 ) = 6
LCD = (x - 2 ) ( x + 2 )
5 *( x - 2 ) + 5 (x + 2 ) = 6
5 x - 10 + 5 x + 10 = 6 ( x ^2 - 4 )
10 x = 6 x ^2 - 24
6 x ^2 - -10 x - 24
Find the roots of the equation by quadratic formula
a= 6 , b= -10 , c= -24
b^2-4ac= 100 + 576
b^2-4ac=676
x1=(10+26)/12
x1=3
x2=(10-26)/12
x2= -1.33
Ignore negative value
Speed of boat is 3 mph
Answer:
the fourth choice
Step-by-step explanation:
i-ready makes the answers ez
Answer:
P = (nRT)/V
Step-by-step explanation:
Step 1: Write formula
PV = nRT
Step 2: Divide both sides by V
P = (nRT)/V
The equation that models the data on pandas is FV = 25(1.066)^t.
<h3>What models the data?
</h3>
The formula for calculating future value of the pandas is:
FV = P (1 + r) ^n
- FV = Future value
- P = Present value
- R = annual population growth
- N = number of years
FV = 25(1.066)^t
To learn more about future value, please check: brainly.com/question/18760477
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Answer:
20, 250
Step-by-step explanation:
3:3:2
u will first need to find the addition of all the ratio and divide each ratio by the sum
3+3+2=8
the u will; 3/8×54000=20,250
3/8×54000=20,250
2/8×54000=13500
