Janet can fill a certain order in 5 hours, therefore she performs 1/5 of the order within 1 hour.
Tom needs 8 hours to do the same job, therefore he performs 1/8 of the order within 1 hour.
Working together, they make 1/5 + 1/8 orders within 1 hour.
Let <em>t</em> mean the number of hours they need. Then we have equation:
Hello!
You put -2 in for x
I don't know whether it is times x or to the power of x so I will do both
5 * 3 * x
5 * 3 * -2 = -30
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5 * 3^x
5 * 3^-2
5 * 1/81 = 5/9 or 0.55555
Hope this helps!
BD=90 DF=110 meaning BF=200
200/5x
X=40
Answer: The correct answer is the last choice.
In the first segment of the trip, the car goes from 0 to 2 hours and the line is moving up. Therefore, it traveled for 2 hours.
In the second segment, the line went straight horizontal for 1 hour. That means the distance didn't change, in other words it didn't move.
In the last segment, it moved up again for 2 hours.
X² - 64 = 0
(x - 8)(x + 8) = 0
x = - 8, 8
Your other solution is - 8
