Answer:
72 miles/day
Step-by-step explanation:
12 m/hr * 6 hr / day = 72 mi/day
Answer:
It's not a right triangle because ![16^{2} + 18^{2} > 24^{2}](https://tex.z-dn.net/?f=16%5E%7B2%7D%20%20%2B%2018%5E%7B2%7D%20%3E%2024%5E%7B2%7D)
Step-by-step explanation:
![16^{2} + 18^{2} > 24^{2}](https://tex.z-dn.net/?f=16%5E%7B2%7D%20%20%2B%2018%5E%7B2%7D%20%3E%2024%5E%7B2%7D)
![16^{2} = 256\\\\18^{2} = 324\\\\256 + 324 = 580\\\\580>24^{2} \\\\24^{2} = 576\\\\580>576](https://tex.z-dn.net/?f=16%5E%7B2%7D%20%3D%20256%5C%5C%5C%5C18%5E%7B2%7D%20%3D%20324%5C%5C%5C%5C256%20%2B%20324%20%3D%20580%5C%5C%5C%5C580%3E24%5E%7B2%7D%20%5C%5C%5C%5C24%5E%7B2%7D%20%3D%20576%5C%5C%5C%5C580%3E576)
Hope this helped!!!!!
Answer:
There are 8 friends and the presents costs $30,000
Step-by-step explanation:
Let x be the number of students and y be the price of the present. Their contributions can be expressed as:
![3000x=y-6000\ \ \ \ \ \ ...i\\\\4000x=y+2000\ \ \ \ \ \ \ \...ii](https://tex.z-dn.net/?f=3000x%3Dy-6000%5C%20%5C%20%5C%20%5C%20%20%5C%20%5C%20...i%5C%5C%5C%5C4000x%3Dy%2B2000%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C...ii)
#Make y the subject in equation i then substitute in ii:
![y=3000x+6000\\\\\#substitute \ in \ ii\\\\4000x=y+2000\\\\4000x=(3000x+6000)+2000\\\\1000x=8000\\\\x=8\\\\y=3000\times 8+6000\\\\y=30000](https://tex.z-dn.net/?f=y%3D3000x%2B6000%5C%5C%5C%5C%5C%23substitute%20%5C%20in%20%5C%20ii%5C%5C%5C%5C4000x%3Dy%2B2000%5C%5C%5C%5C4000x%3D%283000x%2B6000%29%2B2000%5C%5C%5C%5C1000x%3D8000%5C%5C%5C%5Cx%3D8%5C%5C%5C%5Cy%3D3000%5Ctimes%208%2B6000%5C%5C%5C%5Cy%3D30000)
Hence, there are 8 friends and the present is priced at $30,000
Here is the working and the answer
Answer:
Subtract 4 from each side
Step-by-step explanation:
x + 4 > -8
Subtract 4 from each side
x + 4-4 > -8-4
x>-12