Answer:
11235.35
Step-by-step explanation:
Given data
P=8225
R=4.2%=0.042
T=8years
The simple interest formula is
A=P(1+rt)
Substitute
A=8225(1+0.042*8)
A=8225(1+0.336)
A=8225*1.366
A=11235.35
Hence the balance will be 11235.35
The mean can be found by adding the two numbers and dividing by 2
let the second number be y
(x + y)/2 = 1/2x + 1
solve for y
multiply each side by 2
x + y = 2(1/2x + 1)
distribute
x + y = x + 2
subtract x on both sides
y = 2
ANSWER: the second number is 2
$53.73 is the total price (c)
Answer:
y=-23/6
Step-by-step explanation:
in the equation, you would need to first subtract y and -2y which equals -y=> (this would be on the left side of the equation)
then, subtract -1/2 on both sides of equation and put that in the right side of the equation.
add 1/3 on both sides of equation and put that in the right side of equation as well.
now, you have this equation: -y=4-1/2+1/3
you have to make all the fractions have the same denominator by multiplying which results for 4 to be 24/6, -1/2 to be -3/6, and 1/3 to be 2/6
your resulting equation would be -y=24/6-3/6+2/6
and when you solve the right side of the equation by subtracting and adding, you get 23/6
now, the equation would be -y=23/6
finally, you just have to divide -1 on both sides of the equation and you would get y=-23/6 as your final solution.
I hope that helps :)