Answer:
25
Explanation:
In order to solve this the easiest way you can use equivalent fractions.

Since 4 times 5 equals 20 we can multiply 5 times 5 to get our answer.

25 is the answer. But, if we couldn't have gotten to 20 through the multiplication we could use a proportion. That would look like the initial problem but instead of a "?" we would use a variable. I will use <em>t</em> for total.

So now we have our problem set up. The next step is to cross multiply. 4 by <em>t</em> and 5 by 20.

And now we can solve it like a normal algebra problem.

Either way, we get 25.
Answer:
Step-by-step explanation:
Hey there!
In order to solve this problem, you need to know this:
13 pieces of wood, and 1 piece of wood=0.5 ft
Your equation would be 0.5*x=13
13/0.5=x
x=26
Your answer is 26 feet long!
Good luck! :)
Answer:
no solutions
Step-by-step explanation:
Subtract the two equations
3x+y=18
-(3x+y=16)
--------------------
0 + 0 = -2
0 does not equal negative 2
This is never true so there are no solutions
Answer:
The key features of a quadratic function are the y-intercept, the axis of symmetry, and the coordinates and nature of the turning point, or vertex.
(This information is from the internet)
Step-by-step explanation:
Standard, intercept, and vertex are the three forms quadratic functions can be named.