X + y - z = 9
3x - y + z = -13
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4x = -4 => x = -1 => y - z = 10;
But, x - 2y + 4z = -1 => -2y + 4z = 0 => -y + 2z = 0;
y - z = 10
-y + 2z = 0
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/ z = 10 => y = 20 .
A. There is one solution. The solution is ( - 1, 20, 10 ).
Answer: Yes
Step-by-step explanation:
Yes, they are, because if you multiply 2*6=12 and 3*6=18, so here we multiplied both 2 and 3 by the same number (6) and we got the same result 12:18. This method also works with fractions.
Height would be 9. This is because you can divide the volume by the base to get the remaining number
Answer: Option D. x>=3 or x<=-5
Solution:
3x+4>=13 or 2x-1<=-11
3x+4-4>=13-4 or 2x-1+1<=-11+1
3x>=9 or 2x<=-10
3x/3>=9/3 or 2x/2<=-10/2
x>=3 or x<=-5
