540 degree = interior angles
Answer:
i-i think it either A) or C)
Step-by-step explanation:
See in the explanation:
<h2>
Explanation:</h2>
Here we have the following system of linear equations in two variables:
So if you graph these two equations you will get two lines with different slopes. The question is:
<em>What is the result of subtracting the second equation from the first?</em>
So this can be written mathematically as:
So the result of subtracting the second equation from the first is:
and from this we can calculate y.
<h2>Learn more:</h2>
Methods for solving System of Linear Equations:
brainly.com/question/10185505
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Answer:
(E) 450
Step-by-step explanation:
Let x represent the number of gallons of solution X that must be added to the mix. Then the amount of sugar in the mix is ...
0.20x +0.40·150 = 0.25(150 +x)
0.20x +60 = 37.5 +0.25x . . . eliminate parentheses
22.5 + 0.20x = 0.25x . . . . . . subtract 37.5
22.5 = 0.05x . . . . . . . . . . . . . subtract 0.20x
450 = x . . . . . . . . . . . . . . . . . . multiply by 20
450 gallons of solution X must be added to make a 25% sugar solution.
Answer:
1.6.
Step-by-step explanation:
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