Start by proving to them that the number 0.57 can be converted into a fraction . A whole number can't exactly be put in to a fraction. 0.57 can be converted to 14.25/25. This information means that 0.57 IS a rational number. Hope this convinced them!
I believe you do it like this:
1/2 Q+5/2
divide 1/2 into each term
to divide multiply by the reciprocal
1/2 x2/1= 1
5/2 x 2/1=5
1/2(Q+5)
Answer:
-8 + 7
Step-by-step explanation:
7 - 8 = -1
-8 + 7 = -1
2x+8=20
2x=20-8
2x=12
12/2=x
6=x
Answer:(12,17)
Step-by-step explanation:
X + y= 29
4.50x + 7y=173
Solve by elimination.