Answer:
Step-by-step explanation:
A = h(a+b)/2 for h
2A = h(a + b)
h(a+b) = 2A
h = 2A/(a+b)
Answer:
or ![18\frac{9}{20}\ kg](https://tex.z-dn.net/?f=18%5Cfrac%7B9%7D%7B20%7D%5C%20kg)
Step-by-step explanation:
We can convert from mixed numbers to decimal numbers:
![11\frac{1}{2}\ kg=(11+0.5)\ kg=11.5\ kg\\\\1\frac{1}{4}\ kg=(1+0.25)\ kg=1.25\ kg](https://tex.z-dn.net/?f=11%5Cfrac%7B1%7D%7B2%7D%5C%20kg%3D%2811%2B0.5%29%5C%20kg%3D11.5%5C%20kg%5C%5C%5C%5C1%5Cfrac%7B1%7D%7B4%7D%5C%20kg%3D%281%2B0.25%29%5C%20kg%3D1.25%5C%20kg)
Since they cleaned up 8.2 kilograms of trash in one neighborhood and 11.5 kilograms in another neighborhood, the total trash they cleaned up was:
![Total=8.2\ kg+11.5\ kg\\\\Total=19.7\ kg](https://tex.z-dn.net/?f=Total%3D8.2%5C%20kg%2B11.5%5C%20kg%5C%5C%5C%5CTotal%3D19.7%5C%20kg)
We know that they sent 1.25 kilograms to be recycled. Then, in order to calculate how many kilograms of trash they threw away, we must subtract the total kilograms of trash they cleaned up and the kilograms they sent to be recycled.
Then:
or ![18\frac{9}{20}\ kg](https://tex.z-dn.net/?f=18%5Cfrac%7B9%7D%7B20%7D%5C%20kg)
Answer:
822 hours
Step-by-step explanation:
the answer would be 821.95----- but rounded to hours, it is 822
U can multiply 5/6 by 4 and u get 20/24.so she has 4 more questions left to finish Hope this helps:)
No, because if you try to divide it you will get 10.666666...