Answer:
(-3,2)
Step-by-step explanation:
To solve this, I will use substitution. First, isolate y in one of the equations;
-2x+y=8
-3x-y=7
-2x+y=8 is the same as y=2x+8, Now plug y into the other equation to solve for x;
-3x-(2x+8)=7 Solve for x
-5x-8=7
-5x=15
x=-3, Now plug in x in either equation to solve for y;
-2(-3)+y=8
6+y=8
y=2, The answer to this system is (-3,2)
Take 15% of 400, or 0.15 x 400
0.15 x 400 = 60
However, $60 is only the 15%.
Now, take away 60 from 400.
400 - 60 = 340.
So $340 went towards the trip.
David made $18
Leslie made $10. This means that you take 46-10=36
Chen-Chen made twice as much as David so 36/2=18 So Chen made $9.
David- 36-18= 18 So, David made 18 dollars.
Here is the solution...hope it helps:)
5 and 6
u will get 5.3333333 this number is between the whole numbers 5 and 6
