Answer:
See below
Step-by-step explanation:
You multiply the equations by numbers that will give you the least common multiple of the coefficients.
Suppose you have a system of two equations:
You can choose to eliminate either x or y.
1. Eliminating x
The coefficients of x are 2 and 1. The least common multiple is 2, so you multiply (1) by 1 and (2) by 2 to get
Then you can subtract (3) from (4) and get
4y = 80. Solve for y.
2. Eliminating y
The coefficients of y are 1 and 2.5. The least common multiple is 2.5, so you multiply (1) by 2.5 and (2) by 1 to get
Then you can subtract (6) from (5) and get
4x = 40. Solve for x.
Not sure if this is what you want but I multiply by the percent as a decimal
Answer:
See below
Step-by-step explanation:
Using triangle side rule : The sum of any two sides must be greater than the third side
.5<x<16.5
Answers:
<h2>-5 & 28</h2>
Step-by-step explanation:
Since we know that x = -3 and y = 5, we can substitute the number in whenever we see those variables.
5 = -3x - 10
15 = - 3x
-5 = x
We now do the same for the other one
I don't know the correct way to do this, sorry. This answer is correct though
y = 28
<em>PLEASE MARK BRAINLIEST</em>