Answer:
(
5
+
2
i
)
+
(
3
−
2
i
)
Remove parentheses.
5
+
2
i
+
3
−
2
i
Add
5
and
3
.
8
+
2
i
−
2
i
Subtract
2
i
from
2
i
.
8
+
0
Add
8
and
0
.
8
Step-by-step explanation:
285.
60 x 4 = 240.
add 45 = 285.
To answer we let x be the amount of money that Sam invested during the first year.
Below are the expressions translated from the given word forms for the amount invested.
Sam:
2nd year : amount = 5x/2 - 2000
3rd year : amount = x/5 + 1000
The sum of money invested by Sam is:
x + (5x/2 - 2000) + (x/5 + 1000)
Similarly, we derive the expressions that we use for the amount that Sally invested.
Sally
1st year : amount = 3x/2 - 1000
2nd year : amount = 2x - 1500
3rd year : amount = x/4 + 1400
The total amount that Sally invested is,
total = (3x/2 - 1000) + (2x - 1500) + (x/4 + 1400)
Equating the two equations:
(x) + (5x/2 - 2000) + (x/5 + 1000) = (3x/2 - 1000) + (2x - 1500) + (x/4 + 1400)
Solving for x,
x = 2000
For Sally's investment in the third year:
amount = x/4 + 1400 = (2000/4 + 1400) = 1900
ANSWERS:
Sam's first year = $2000
Sally's third year = $1900
If the number is negative than it is less than it's absolute value.
Are those two different problems because it doesn't make sense
