Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Just do 9 divided by 15, and it equals 0.6.
Or an equivalent fraction would be 18/30, and that is found by multiplying the numerator and denominator by an equal factor of 2.
<em>let the charges of washer <u>= x ..
</u></em><em>charges of dryer is three times than <u>x = 3x
</u></em><em><u>as we know their addition is 600 so
</u></em><em><u>x + 3x = 600
</u></em><u><em>4x = 600
</em></u><u><em>dividing 4 on other side we get
</em></u><u><em>x = 600 / 4
</em></u><em><u>x = 150..
</u></em><em><u>charges of washer = x= 150 dollars
</u></em><u><em>charges of dryer = 3x= 3 (150) = 450 dollars</em></u>
Let us assume the unknown number = x
Then we can write the equation for finding the unknown number as
18x/100 = 63
18x = 63 * 100
18x = 6300
x = 6300/18
= 350
So the unknown number is 350.
I hope this is the answer you
were looking for. The process used here is one of the simplest processes.
Hopefully you can solve such problems very easily in the future without
requiring any help from other people.
Answer:
(1,-4)
Step-by-step explanation:
First manipulate the second equation so that y is by itself
x-y=5
-y=-x+5
y=x-5
then substitute that y in for the y in the above equation and solve for y
y=-2x-2
x-5=-2x-2
3x-5=-2
3x=3
x=1
Now that you have the x-coordinate, find the y-coordinate by plugging in the x-value in either of the equations
y=-2x-2
y=-2(1)-2
y=-2-2
y=-4
I see that you're using deltamath, and I think for the graph questions, you could first place a point for the y-intercept of one of the equations, and then place another point that is on the graph of the equation. Once you plotted both lines, just see the point where they meet and that is where the two systems of equations meet.