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REY [17]
3 years ago
5

Solve the following system: (5 points)

Mathematics
2 answers:
Svet_ta [14]3 years ago
6 0
Y = x + 3
2x + y = 9

substitute the first equation into the second equation;
2x + y = 9 
2x + x + 3 = 9
3x + 3 = 9

solve for x;
3x + 3 = 9
3x = 9 - 3
3x = 6
x = 2

solve for y, given the value of x;
y = x + 3
y = 2 + 3
y = 5

so the answer is (2, 5).

hope this helps, God bless!
posledela3 years ago
5 0
I wish I could help but I didn’t learn that
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In this problem, we have that:

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This is the pvalue of Z when X = 119 + 1.1 = 120.1 subtracted by the pvalue of Z when X = 119 - 1.1 = 117.9. So

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