3x - 5y = 27
-3x -12y = 24
-17y = 51
/-17 /-17
y = 3
x + 4(3) = -8
x + 12 = -8
-12 -12
x = -20
(-20, 3)
The balance in dollars and cents in Yolanda's account at the end of 4 years is $5,355.29
What is the future value of an ordinary?
An ordinary annuity is the one where the monthly deposit occurs at the end of each month rather than at the beginning of the months such its future value based on 5.5% annual interest rate can be determined thus:
FV=PMT*(1+r)^N-1/r
FV=balance in dollars and cents in Yolanda's account at the end of 4 years=unknown
PMT=monthly deposit=$100
r=monthly interest rate=5.5%/12=0.00458333333333333
N=number of monthly deposits in 4 years=4*12=48
FV=$100*(1+0.00458333333333333)^48-1/0.00458333333333333
FV=$5,355.29
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Missing question:
What was the balance in dollars and cents in Yolanda's account at the end of 4 years?
Step-by-step explanation:
x is the number.
(x + 5) - 2x : the sum of the number and 5 decreased by twice the number.
or simplified without the brackets
x + 5 - 2x = 5 - x
it is not clear if you need the general expression showing both conditions (the first up there), or the then simplified result
5 - x
5%x3000=150. The annual fee is $150. After 4 years, he would owe 600