Answer:
4
Step-by-step explanation:
The y-variable can be eliminated by adding 3 times the first equation to the second:
3(2x -y) +(x +3y) = 3(11) +(-5)
7x = 28 . . . . simplify
x = 4 . . . . . . . divide by 7
_____
Using Cramer's Rule, you can also find the x-value. The math is not so different.
x = ((-1)(-5) -(3)(11))/(-1(1) -3(2)) = -28/-7 = 4
Answer:
85
Step-by-step explanation:
10x13=130, 9x5=45, 130-45=85
24X16.9= 405.6oz is the weight
Answer:
x = -5.39
Step-by-step explanation:
x + (−2.4) = −7.79
x = −7.79 + 2.4
x = -5.39
Answer:
9 cm
Step-by-step explanation:
It say ΔLMN and Δ PQR is equal
Therefore, LN is 9 cm Then PQ is 9 cm Too.
