Answer:
<h2>
Explanation:</h2>
We have the following System of Linear Equations in two variables:

So let's call this as SYSTEM A. Two systems of equations are said to be equivalen if and only if they have the same solution, so we can get an equivalent system, called SYSTEM B, by multiplying an equation by some constant value. Let's say we multiply equation (1) by 2, then:

In conclusion:
SYSTEM A:

SYSTEM B:

SYSTEM A and SYSTEM B are equivalent
<h2>Learn more:</h2>
System of equations: brainly.com/question/13799715
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Answer:
Yellow Paint: 0.44736842105%
Red Paint: 0.19736842105%
Water: 0.35526315789%
Step-by-step explanation:
Yelow:
30 x 0.3 = 9
8 + 9 = 17
30 + 8 = 38
17/38 = 0.44736842105%
Red:
30 x 0.25 = 7.5
7.5/38 = 0.19736842105%
Water:
30 x 0.45 = 13.5
13.5/38 = 0.35526315789%
-15 and 4
-15 x 4=-60
-15+4 = -11
Answer: 288.62
Step-by-step explanation:
Step-by-step explanation:
120 or 16 I think sorry if I got it wrong