X + y = 1.....x = 1 - y
x * y = 0.09
y(1 - y) = 0.09
y - y^2 = 0.09....re-arrange
y^2 - y + 0.09 = 0
(y - 0.9)(y - 0.1) = 0
y - 0.9 = 0 x + y = 1
y = 0.9 x + 0.9 = 1
x = 0.1
y - 0.1 x + y = 1
y = 0.1 x + 0.1 = 1
x = 0.9
so ur 2 numbers are : 0.1 and 0.9
Answer: About 73 years
Step-by-step explanation:
We would apply the formula for determining compound interest which is expressed as
A = P(1+r/n)^nt
Where
A = total amount in the account at the end of t years
r represents the interest rate.
n represents the periodic interval at which it was compounded.
P represents the principal or initial amount deposited
From the information given,
P = 2000
r = 5.5% = 5.5/100 = 0.055
n = 1 because it was compounded once in a year.
A = 100000
Therefore,.
100000 = 2000(1 + 0.055/1)^1 × t
100000/2000 = (1.055)^t
50 = 1.055^t
Taking log of both sides, it becomes
Log 50 = log 1.055^t
1.699 = t × log 1.055
1.699 = 0.0234t
t = 1.699/0.0234
t = 72.6
Approximately 73 years
Answer:
Below
Step-by-step explanation:
It's 66
To find a percentage of a number just multiply it by 0.whatever the percentage if that makes sense...
In this case you would do 55 x 1.2 = 66
Hope this helps!
EXPLANATION:
STEPS:
1.First we have to find the partial distances in the two equations given and then find the total, but to do so we must find the value of x, then replace it in each of the equations and finally the sum will give us the total of all the magnitudes.
2.
