$\frac{1}{2}x+\frac{1}{4}y=6 \ \ \ |\times 2 \\
\frac{1}{5}x+\frac{1}{3}y=1 \ \ \ |\times (-5) \\ \\
x+\frac{1}{2}y=12 \\
\underline{-x-\frac{5}{3}y=-5} \\
\frac{1}{2}y-\frac{5}{3}y=12-5 \\
\frac{3}{6}y-\frac{10}{6}y=7 \\
-\frac{7}{6}y=7 \\
y=7 \times (-\frac{6}{7}) \\
y=-6 \\ \\
x+\frac{1}{2}y=12 \\
x+\frac{1}{2} \times (-6)=12 \\
x-3=12 \\
x=12+3 \\
x=15 \\ \\
\boxed{(x,y)=(15,-6)}$

3 0

3 years ago

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Geometry question Help please! Thanks!

DaniilM [7]

Answer:

$theta=47.33 degrees$

Step-by-step explanation:

sin theta=opposite/hyp

sin theta=500/680

theta in degrees=47.33

7 0

1 year ago

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PLEASE HELP 50 POINTS

Nadya [2.5K]

Answer:

Step-by-step explanation:

if you look at the graph you can see that if you add 2 each tie to a problem it will not go left but right because right means the value is going up and left means the value is going down

3 0

3 years ago