Population decreases at the rate of 25 people every 5 years
slope of a line = difference in y / difference in x (or rise / run) = -25 / 5
slope m = -5
when x = 0 (that is the year 1970 ), the population is 250
x = 0 represents the y -intercept
So which answer choice has slope = -5 and y-intercept =250?
OR IF THAT WAS HARD TO UNDERSTAND
The initial population is 250
It decreases at a rate of 5 people per year
After year one, it will be 250 - 1(5)
After year two, it will be 250 - 2(5)
After year three, it will be 250 - 3(5)
After year x, it will be 250 - x(5)
The function is y = -5x + 250
<span>75%=.75
Convert to a fraction
0.75 = 3/4
(3/4) of 4, that means (3/4) times 4. (3/4)*4 = 12/4 = 3
3 is </span>the answer
b = -1-7ab=−1−7a
Can be rewritten to be easier to understand.
In addition you can say the following equation is valid due to the way your problem was given to you.
Of course, you can simplify equation 2
This ends up giving you b so you don't end up having to do any substitution in order to find b. Now substitute the value for b into either equation. I'm choosing the third because it's easiest.
And there you go :)
The two strands of Decorative light will shine at same time after every 15 seconds.
<h3>What is defined as the Highest common factor?</h3>
- The greatest of all their common factors is the Highest Common Factor (HCF) of more than one number.
- As a result, it is also known as the greatest common factor (GCF).
- There isn't an exact formula for determining the greatest common factor of two numbers.
- However, when considering prime factorization, we can write a statement that aids in evaluating the greatest common factor of more than one number.
The stated condition are-
The light strand one change color every 30 seconds.
The light strand second change color every 45 seconds.
Prime factorization of both number are;
30 = 2×3×5
45 = 3×3×5
The numbers with highest power are;
HCF(30, 45) = 3×5 = 15.
Thus, the time after which both the light strands will change colour at the same time is 15 seconds.
To know more about Highest common factor, here
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