Answer: 2 roots
Step-by-step explanation:
Answer: She will loose 75 min. (1 hour and 15 minutes)
Step-by-step explanation:
90,000 becuase 63,824 is rounded down to 60,000 and 29,452 is rounded up to 30,000. 60,000+30,000 is 90,000
Answer: Plug in answers work backwards; or learn log to get rid of powers
Step-by-step explanation: save time on your test by cheating yourself of knowledge
Answer:
The answer is and
Step-by-step explanation:
Given:
-4x-2y=14
-10x+7y=-24
Now, to solve it by elimination:
......(1)
......(2)
So, we multiply the equation (1) by 7 we get:
And, we multiply the equation (2) by 2 we get:
Now, adding both the new equations:
<em>Dividing both the sides by -8 we get:</em>
Now, putting the value of in equation (1):
<em>Subtracting both sides by 25 we get:</em>
<em>Dividing both sides by -2 we get:</em>
Therefore, the answer is and