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lesok0818
28.06.2020 •
Mathematics
What is the solution to the system of equations below?
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Ответ:
HOPE IT HELPED
Step-by-step explanation:
2x + 3y = 17
3x + 6y = 30
TIMES THE FIRST EQUATION BY TWO:
2(2x + 3y = 17)
4x + 6y = 34
NOW OUR EQUATIONS ARE:
4x + 6y = 34
3x + 6y = 30
SUBTRACT THE FIRST EQUATION BY THE SECOND ONE:
4x + 6y = 34
(-) 3x + 6y = 30
x = 4
THEREFORE:
x = 4
NOW SUBSITUTING x IN THE FIRST EQUATION:
4(4) + 6y = 34
16 + 6y = 34
6y = 34 - 16
6y = 18
y = 18/6
y = 3
THEREFORE:
X = 4
Y = 3
IT IS THE THIRD OPTION...(4,3)
Ответ:
answer with explanation:
properties of numbers plotted on number line:
numbers on the right of number line is bigger.
the number that nicole wants to compare using number line
first plot these points on the number line, and real numbers on the right of number line is bigger than any real number on the left.
to plot , , on the number line, mark 3 lines between 1 and 2, equidistant from each other ,which we call and 2.
to plot, 1.5 on the number line, mark a line equidistant between 1 and 2.
you will find that, is on right of 1.5.so, is bigger than 1.5.