<u> 3x + y = 25</u>
To solve for 'y' ...
Subtract 3x from each side: <em> y = 25 - 3x</em>
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<u>3x + y = 25</u>
To solve for 'x' ...
Subtract 'y' from each side: 3x = 25 - y
Divide each side by 3 : <em>x = (25 - y) / 3 </em>
Add the numbers up, then take the percentage sign away and there you have it! A number all fresh, new and crisp!
Answer:
Step-by-step explanation:
5.1, please this is just a guess from using my head to calculate
For a, you could use the volume of a sphere divided by two to solve for a dome (like when you cut a sphere in half).
For b, you could use the volume of a rectangular prism divided by three when solving for a rectangular pyramid.
This is because the volume for a rectangular prism is V=lwh, and for a rectangular prism the volume is V= (1/3)lwh
I have attached a screenshot with the complete question
Part (1):We are given the prototype used for building the wall with the following dimensions:
long side = 8 in
short side = 5 in
Now, in the wall itself, we want to find the value of the length "a".
This length represents the short side in the prototype used in building the wall.
Therefore:
a = 5 in
Part (2):We are given the prototype used for building the wall with the following dimensions:
long side = 8 in
short side = 5 in
Now, in the wall itself, we want to find the value of the length "b".
This length represents the long side in the prototype used in building the wall.
Therefore:
b = 8 in
Part (3):Looking at Dakota's wall, we can note that its height is formed from three bricks each having the height "b". We have deduced previously that b = 8 in.
Therefore:
height of wall = 3 * b
height of wall = 3 * 8 = 24 in
Part (4):Looking at Dakota's wall, we can note that its length is formed from nine bricks each having a length "a". We have deduced previously that a = 5 in.
Therefore:
length of wall = 9 * a
length of wall = 9 * 5 = 45 in
Hope this helps :)