Answer:
9+(-8)
Step-by-step explanation:
8-(-9) is subtraction
9+8 would not give you a difference
8+(-9) would give you a negative number
so 9+(-8) is the right answer
Answer:
2
Step-by-step explanation:
there would be 2 in every group, 10 divided by 5
Dividing by a half is the same as multiplying by two. 3/4 multiplied by 2 is
or, in improper fraction form
or, in decimal form, 1.5
Answer: Id say the size....because the price DEPENDS on how big or small it is
Answer:
Your answer is infinitely many solutions
Step-by-step explanation:
To use elimination you have to get one of the variables to be the opposite of each other, so here you would do:
-2(2x+y = 7)
4x+2y= 14
You multiply the top by -2 to get the opposite of 2y, which is -2y. This in turn multiplies everything by -2 on the top solution giving us the top equation below.
-4x-2y = -14
+ 4x+2y = 14
--------------------
0 = 0
If you add those 2 solutions then you get 0 = 0, which is infinitely many solutions
