Answer:
ab = 1
Step-by-step explanation:
A Reciprocal of a number is a number which when multiplied by the original number yields the multiplicative number, 1.
So the reciprocal of x would be x⁻¹ or ¹⁄ₓ
The information we are given states that the sum of the two non-zero numbers a and b equals the sum of their reciprocals.
So we can write this into an equation and solve,
(See image)
Once we solve, we get the equation (ab-1)(a+b) = 0
We are given info that a+b≠0
So for the above equation to be true, ab-1 has to equal 0
For <em>this</em> to be true, the product ab must equal 1
Answer:
They will both leave at 07:15am
Step-by-step explanation:
Given
![Start\ time = 6:00am](https://tex.z-dn.net/?f=Start%5C%20time%20%3D%206%3A00am)
![Bus\ A=75\ mins](https://tex.z-dn.net/?f=Bus%5C%20A%3D75%5C%20mins)
![Bus\ B=15\ mins](https://tex.z-dn.net/?f=Bus%5C%20B%3D15%5C%20mins)
Required
Next time both buses leave the station at the same time
To do this, we list out the multiples of 75 and 15.
We have:
![Bus\ A = 0,75, 150, 225, 300,375, 450, 525, 600 ....](https://tex.z-dn.net/?f=Bus%5C%20A%20%3D%200%2C75%2C%20150%2C%20225%2C%20300%2C375%2C%20450%2C%20525%2C%20600%20....)
![Bus\ B =0, 15,30,45,60,75,90,105,120,135,150,165,180.....](https://tex.z-dn.net/?f=Bus%5C%20B%20%3D0%2C%2015%2C30%2C45%2C60%2C75%2C90%2C105%2C120%2C135%2C150%2C165%2C180.....)
After the first departure at 06:00 am (0 minutes) for both buses respectively, the next time they both leave is after 75 minutes (common multiple)
So, the time is:
![Time = 6:00am + 75 mins](https://tex.z-dn.net/?f=Time%20%3D%206%3A00am%20%2B%2075%20mins)
![Time = 07:15am](https://tex.z-dn.net/?f=Time%20%3D%2007%3A15am)
Answer: Point C.
Because √300=17.3205=17.3 :)
I hope this helped!
Answer:
8 pizza's
Step-by-step explanation:
9 x ?= 72
72 divided by 9 = 8
BRAINLIEST PLS
Answer:
3
Step-by-step explanation:
8 is the answer and 2 is the base so 3 is the exponent.