Answer:
Let p be the amount invested at 8%. Then the amount invested at 5% would be 30,000-p. So:
.08p+.05(30,000-p)=2100
.03p+1500=2100
.03p=600
p=20,000
$20,000 was invested at 8%; $10,000 was invested at 5%
Step-by-step explanation:
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The printer prints 2.75 pages per minute
Solution: 11/4=2.75
Go by each term and simplify
a(a^2)-a(ab) + a(b^2) + b(a^2) - b(ab) + b(b^2)
you get
a^3-a^2b +ab^2+a^2b-ab^2+b^3
simplify more
a^3+b^3
I'm not sure but tell me if i'm right
