Answer:
C) 34
Step-by-step explanation:
use -b/2a to find the x value of the vertex (3)
then plug 3 into equation
- 3(3)² + 18(3) + 7
the answer is 34
Answer: $ 123,859.75
Step-by-step explanation:
you will want an initial investment of $ 14,000.00
to attain a future value of $ 123,859.75
at an interest rate of 5%
with monthly contributions of $ 500.00
for an investment period of 12 years
this is the explanation
Step-by-step explanation:
5x=75
22+5x=97
11y-5=106
7y+13=83
to conclude it all adds up to 360
360=83+106+97+75
Answer:
s=6 years
m=48 years
Step-by-step explanation:
Let
Mother's age=m
Son's age=s
m=8*s
m=8s (1)
m+6=9/2(s+6)
m+6=9/2s+27 (2)
Substitute (1) into (2)
m+6=9/2(s)+27
8s+6=9/2s+27
8s+6-9/2s-27=0
8s-9/2s-21=0
(16-9/2)s-21=0
7/2s=21
s=21÷7/2
=21×2/7
=42/7
s=6
Present age of the son=6
m=8s
=8(6)
m=48
Present age of the mother=48
