Answer:
10%
Step-by-step explanation:
i think
volume of the box is 675 cubic inches
A machine produces open boxes using square sheets of plastic.
It is a square sheet so length and width are same
Lets assume length as x so width is also x
The machine cuts equal-sized squares measuring 3 inches on a side from each corner of the sheet.
After turning up the sides the height of the box becomes 3 inches
We know the volume of a box formula
Volume = Length * width * height
We know length is x , width is x and height = 3
So V = x * x * 3
Given volume = 675 cubic inches
![675 = x * x * 3](https://tex.z-dn.net/?f=675%20%3D%20x%20%2A%20x%20%2A%203)
![675 = x^2* 3](https://tex.z-dn.net/?f=675%20%3D%20x%5E2%2A%203)
Divide by 3 on both sides
![225 = x^2](https://tex.z-dn.net/?f=225%20%3D%20x%5E2)
Now we take square root on both sides
x = 15
the length of one side of the open box is 15 inches.
Answer:21
Step-by-step explanation: plug in 19 and 1
1x3 is 3 plus 19 is 21
1). Enrico Fermi directed construction of the the thing
that achieved the first sustained nuclear chain reaction,
under the stadium at the University of Chicago.
3). 'Fission' means splitting one big thing up into several
smaller things.
4). The atomic mass of an atom is close to the sum of all
the neutrons and protons in its nucleus.
5). 'Fusion' means several small things joining to form a
bigger thing.
6). Henri Becquerel is credited with discovering radioactivity.
7). The names of Madame Marie and Mssr. Pierre Curie were
appropriated after their deaths and used as the unit of radiation.
2). I have no idea what that symbol means, but 'neutron' is
the only choice left.
Answer:19+3x
Step-by-step explanation:
4+3(5+x)
Open bracket
4+15+3x
19+3x