There's an app called photo math that can really help you with your problem
The example for an inconsistent system of equations:
x + 2 y = 10 and x + 2 y = 20. If we try to solve it algebraically:
x = 10 - 2 y; 10 - 2 y + 2 y = 20; 10 = 20 ( not true ). We will with something that is not true. Graph of those equations shows 2 parallel lines. Therefore the system is inconsistent.
The system is dependent when we have equivalent equations. For example:
2 x + y = 5 and 4 x + 2 y = 10. If we try to solve this system, we will end up with: 0 = 0 ( true ). The graph of this system shows the same line. This system is dependent.
Finally, if we have just one solution for the system of equations then the system is independent. For example: x + y = 5 and - x + 2 y = 10. When we add those equations: 3 y = 15; y = 15 : 3; y = 5; x + 5 = 5; x = 0. So we have just one solution ( x , y ) = ( 0, 5 ). The system of equations is independent.
Answer:
1,116
Step-by-step explanation:
2568 + ( - 1452)
= 2568 - 1452 ( because + × - makes -)
= 2568 - 1452
=<u> 1,116</u>
Answer:
$1,740
Step-by-step explanation:
Setting up an equation to solve for Lesley's total salary would be the sum of her monthly base salary ($1,500) and the amount of her commission for any sales over $20,000:
Salary = $1,500 + (sales - $20,000)(0.04)
Since Lesley sold $26,000 in sales this month, we can calculate her total salary and commission:
Salary = $1500 + ($26,000-$20,000)(0.04) or $1500 + ($6000)(0.04)
Salary = $1500 + $240 = $1,740.00
Answer:
It looks like all of thm
Step-by-step explanation:
