We are given the equations 3x+5y=-3 and x-5y=-5.
Both equations have a 5y term which allows us to easily solve the system by elimination. To do so we will add the equations together like a simple addition problem by adding the x terms together, the y terms together, and the integer answers together.
3x + 5y = -3
+x - 5y = -5
---------------
4x + 0y = -8
The y terms cancel out since one is positive and one is negative. Now we can solve for x.
4x = -8

x = -2
Now plug -2 in for x in one of the original equations to find y.
(-2) - 5y = -5
-5y = -3
y = 3/5
Our answer as an ordered pair is (2, 3/5)
200 is the answer so it would equal to 2 hundreds
Answer:
9>0.9>0.7>-18/36
Step-by-step explanation:
the smallest would be -18/36.
now we have 9,9/10,28/40
simplify 9/10: 0.9
simplify 28/40: divide 28 and 40 by 4. you will have 7/10 which is equal to 0.7.
now the greatest number is 9,then 0.9 and then 0.7
if anything is unclear, ask freely.
a
0
=
4
a
i
=
a
i
−
1
+
7
XXXX
possibly with the restriction 1<=i<=4 if this is not intended to be a continuous sequence
Explanation:
This is a simple arithmetic sequence with a difference of
7
between ascending sequence terms.
Answer:
w=2
Step-by-step explanation:
I'm too lazy to explain the first part but here:
3/4w=6/4
w=2