Answer:2737t
Step-by-step explanation:
Answer:
833/10000 fraction 83.3 percentage
Step-by-step explanation:
Answer:
.000018484
Step-by-step explanation:
You divide them and that is what your calculator says
The equations are dependent (they're the same equation).
If you multiply the bottom one by 5, you get the top one.
Step-by-step explanation:
We have to get one positive 7y so,
4x-7y=5
9x-7y=-15
multiply anyone of the equation by -1. I choose the first one so,
4x+7y=-5
9x-7y=-15
we can now cancel the y's so the equation will be left with
-4x=-5
9x=-15
add the equations
5x=-20
divide by 5 n u get
x=-4
now plug in the x value in any one of the
equations
I choose the first one so,
4(-4)-7y=5
-16-7y=5
add 16 to both sides
-7y=21
divide by -7
y=-3.
finally check.
