Answer:
128 and 74.
Step-by-step explanation:
128 rounded to the nearest ten is 130, and 74 rounded to the nearest ten is 70. 130-70=60
Answer:
-5/7
Step-by-step explanation:
(-4,2) (3,-3)
-3-2= -5
3-(-4)= 7
-5/7
Answer:
0
Step-by-step explanation: 2x+8=2x+6 --> 8=6
8 cant be equal to 6 so this equation is wrong and has no solution.
Answer:
The answer is A.
Step-by-step explanation:
So we have the two equations:
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To make a substitution of the second equation into the first equation, we need to isolate the <em>y </em>variable in the second equation. Thus:
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Now, we can substitute this into the first equation. Therefore:
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