Hey there!
First, multiply the second equation by -2 as the problem states. When you multiply the second equation by -2, you get:
-2x+4y=2
Now, add this equation to the first equation in which you simply combine like terms:
2x+y=3
+
-2x+4y=2
=
5y= 5
In conclusion, the correct answer would be the first choice.
Answer:
75
Step-by-step explanation:
did it 5 mins ago
Answer:
Step-by-step explanation:
1.
1/4 cup x 13 and 1/2 cup x 1
2.
1/2 cup x 7 1/4 cup x 1
The "cylinder" has a diameter of 6, and therefore its radius is half that, or 3, thus
Answer:
in the form 81 and 324
Step-by-step explanation:
Divide 405 in the ratio 3: 12.
3x+12x=405
15x=405
x=405:15
x=27
=> 3*27 and 12*27
81 and 324
in the form 81 and 324
