The value of 2a + 3b is 13
Answer:
The rate of simple interest is 25.89 %
Step-by-step explanation:
Given as :
The principal = $2350
The Amount = $2500
The time period = 90 days =
year = 0.2465 year
Let The rate of interest = R %
So, Interest = Amount - Principal
Or, Interest = $2500 - $2350 = $150
<u>From Simple Interest method </u>
Simple Interest = 
Or, $150 = 
or, $150 × 100 = $579.275 × Rate
So, Rate =
∴ Rate = 25.89 %
Hence The rate of simple interest is 25.89 % Answer
Answer: 7x-5
Step-by-step explanation:
Assuming the expression is 21^2 + 13x -20.
(7x-5)(3x+4)
If a factor is x+4, that means that the coefficient of x^2 (the number in front of it, which would be 1) and that 20 should be divisible by 20. Now, if you divide 20 by 4, you would get 5, and 1/1 = 1. So, the 2 factors you have is
(x+4)(x+5)
When you FOIL, you would get
x^2+9x+20, which means
b=9
Answer:
There was a <u>50%</u> chance that the goldfish would swim to the left
Step-by-step explanation:
Percentage means "amount in one hundred".

<u>Newspaper headline:</u>
There was a <u>50%</u> chance that the goldfish would swim to the left.