It works because even if the numbers are broken apart, you are still multiplying the numbers by their values, it's only different because once broken apart, it's in expanded form instead of standard form. It also makes multiplication easier since you don't have to deal with such large numbers.
Answer:
(1, -1)
Step-by-step explanation:
If you replace y and x with (1 and -1) you have -1 - 2^1 < -3
And that equals -3 if solved. The sign says equal to or less than, so you answer is (1, -1)
Answer:
140/3 or 46.6(with the 6 repeating)
Step-by-step explanation:
(x+55)+(2x-15)=180
Answer:
70
Step-by-step explanation:
26 times 2 the plus 18 and you get 70 hope this helps
