R, which is the rate is 20%.
<h3>What is simple interest?</h3>
Simple interest is the interest on a sum of money invested or borrowed for a specific period of time.
The sum invested is called the principal.
Analysis:
simple interest (I) = PRT/100 = 300
P = principal = 3000
R = rate = ?
T = 0.5 year
300 = 3000 x R x 0.5/100
R = 20%
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Sara is wrong because making 3 cakes instead of 1 would require 2 1/4 cups of sugar. The original 3/4 cups of sugar would be multiplied by 3 (3/1 x 3/4) which would be 9/4, or 2 1/4, cups.
Answer:
Multiplying a complex number by a real number
(x + yi) u = xu + yu i. In other words, you just multiply both parts of the complex number by the real number. For example, 2 times 3 + i is just 6 + 2i. Geometrically, when you double a complex number, just double the distance from the origin, 0.
binomial methods
Complex numbers use binomial methods of multiplication because unlike real numbers, imaginary numbers have two components.
So probably A. I sorry, but I need more information. Hope this helps
Step-by-step explanation:
Answer:
r=8
hope this helps
have a good day :)
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