Answer:
A. x=2, y = 7.
B. (2, 7).
Step-by-step explanation:
A. You can eliminate y by subtracting the equations:
y = 8x - 9
y = 4x - 1 Subtract:
0 = 4x - 8
4x = 8
x = 8/4 = 2.
Now substitute for x in the first equation:
y = 8(2) - 9 = 7.
Check in the second equation:
y = 4x - 1
7 = 4(2) - 1 = 7. Check is OK.
B. On the graph they will intersect at the point (2, 7).
They will intersect here because the values x=2 and y=7 satisfy both the 2 equations.
Answer:
C -2.2675
Irrational numbers cannot be expressed as a fraction for any integers and they have decimal expansions
75%
30/40 means its 75% out of 100%
75$ representing the 30 and the 100$ representing the 40
Answer:
3142
Step-by-step explanation:
4713 x 2/3
Divide 5.60 by 70 and that's the price per ounce
