Answer:
Step-by-step explanation:
Use substitution, y=3x+18 so -12x+4(3x+18)=-24. From here you can try to solve for x
-12x+12x+72=-24
The xs cancel, which leaves you with 72=-24
Since 72 cannot equal -24 there is no answer to this system of equations
9/20
the numbers that would satisfy this are 15,16,17,18,19,20, 1,2,3
so there are 9/20
I like to solve these by graphing, so if you graph both of these functions (as shown in the picture below), you look for the intersection between the two graphs, which in this case is
(-2,6).
28%
Explanation:
Use this formula:
New number - original number divided by original number x 100
In this case:
15,360 - 12,000 ÷ 12,000 x 100
= 28
Final answer: 28%
A brainliest would be nice!
-SpaceMarsh
