
Ax+By=C
steps:
1) Subtract the By
Ax + By = C
–By = C – By
*Positive and Negative Cross Each Other Out*
Ax = C – By
2)divide by A
Ax = C – By
---- = ----------
A A
*A divided by A is one*
Answer:

Step-by-step explanation:
We have to find an equation of the form
, where a is the initial value, b is the rate, and x is the time.
Here, the initial amount if 72, so a = 72. We also know that the population triples every hour, which means b = 3. Plug these in:


The book is 540 pgs.....she has read 405....that leaves (540 - 405) = 135 pgs left to read.
135 / 540 = 0.25 = 25% <== what she has left to read
Using I = PRT
$2500 - $2000 = $2000 × 0.04 × t
$500 = 80t
t = $500 ÷ 80
t = 6.25 years
so the answer is 6
The length in units of the line segment A'B' in the resulting figure is the same as the length of line segment AB in the previous rectangle.
<h3>Translation of shapes in the Cartesian plane</h3>
Form the task content;
- It follows that the initial rectangle A is only translated and hence, the size of each of its sides remains constant.
The translation which occurs on the rectangle only shifts the whole rectangle leftward and downward and hence, each line segment in the rectangle still retains its length.
Read more on translation in the Cartesian plane;
brainly.com/question/5471952