Answer:
I believe the answer is -243
Step-by-step explanation:
640,000 powers of 10 4×=10×10×10×10=10,000 10,000×64=640,000
Answer:
k=-6
Step-by-step explanation:
hey again hope this helps mark me brainliest
To solve this, the problem is solvable by elimination. So you see how the 5y and -5y cancel out? You basically add those two and you add the -7x and 4x and 10 and -10 leaving you with -3x=0. Dividing by each side gives you x=0. Then, plug 0 in for x in -7x+5y=10. Giving you
-7(0)+5y=10.
0+5y=10
5y=10
Divide by 5 on each side giving you y=2. So your answer is (0,2).