Answer:
3x - (10+7)
Step-by-step explanation:
The initial amount is $650. The $400 is deposited in Account 1 with 3.5% annual simple interest. The $250 is deposited in Account 2 with 3.5% interest compounded monthly.
n = 2 years
Account 1: Simple Interest
F = P (1+rn)
= 400 (1 +(0.035*2))
= $428
Account 2: Compound Interest
F = P (1+i)^n
= 250 ( 1+0.035)^2
F = 267.81
Total money after 2 years = $428 + $267.81
T = $695.81
Here’s what you can do to make this very simple. Consider that the “missing” space between the rectangles isn’t there. Then, find the area:
10 x 9 = 90 mm
Now, find the area of the “missing” part.
5 x 2 = 10 mm
Finally, you deduct the missing part from the complete rectangle!
90 - 10 = 80 mm
The area of this whole thing is 80 mm!
