Answer:R = 9.1667%/year
Step-by-step explanation:
Solving our equation
r = 330 / (3600 × 1) = 0.09166667
r = 0.09166667
converting r decimal to a percentage
R = 0.09166667 × 100 = 9.1667%/year
The interest rate required to
accumulate simple interest of $330.00
from a principal of $3,600.00
over 1 years is 9.1667% per year.
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Answer:
chill out this this you post the 6 times
Step-by-step explanation:
<span>y=375/x, so when x=1, y=375</span>
Answer:
The volume of the solution with 20% acid is 27 gallons and the one with 10% acid is 18 gallons
Step-by-step explanation:
Myra needs to mix "x" gallons of the solution with 20% and "y" gallons of the solution with 10%. The volume of the final solution must be 45 gallons, therefore:
x + y = 45
The concentration of acid of the final solution is:
0.2*x + 0.1*y = 45*0.16
0.2*x + 0.1*y = 7.2
Therefore we have a system of equation:
x + y = 45
0.2*x + 0.1*y = 7.2
We need to multiply the first equation by -0.1:
-0.1*x -0.1*y = -4.5
0.2*x + 0.1*y = 7.2
We now sum both equation:
0.1*x = 2.7
x = 2.7/0.1 = 27 gallons
y = 45 - 27 = 18 gallons
