Answer:
420 minutes
Step-by-step explanation:
7:30am to 2:30pm
=7:30to 14:30
=14.30-7.30=
7hours
in minutes;
7×60
= 420minutes
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This problem here would be a little tricky. Let us take into account first the variables presented which are the following: a collection of triangular and square tiles, 25 tiles, and 84 edges. Triangles and squares are 2D in shape so they give us a variable of 3 and 4 to work on those edges. Let us say that we represent square tiles with x and triangular tiles with y. There would be two equations which look like these:
x + y = 25 and 4x + 3y = 84
The first one would refer to the number of tiles and the second one to number of edges.
We will be using the first equation to the second equation and solve for one. So if we will be looking for y for instance, then x in the second equation would be substituted with x = 25 - y which would look like this:
4 (25 - y) + 3y = 84
Solve.
100 - 4y + 3y = 84
-4y +3y = 84 - 100
-y = -16
-y/-1 = -16/-1
y = 16
Then:
x = 25 -y
x = 25 - 16
x = 9
So the answer is that there are 9 square tiles and 16 triangular tiles.
The slope of the line in its simplest form is 3.
The slope of a line is 
.
We need to find the slope of the line in its simplest form.
<h3>What is the slope?</h3>
In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. The slope is often denoted by the letter m; there is no clear answer to the question of why the letter m is used for slope.
Select any two points on the line like A and B.
From the below figure it is clear that
Rise = Change in y = -2-(-5) = 3
Run = Change in x = 9-0 = 9
Now, 
Therefore, the slope of the line in simplest form is 3.
To learn more about the slope visit:
brainly.com/question/3605446.
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Answer:
61,500
Step-by-step explanation:
8200 x 6.5 = 53,300 + 8200 = 61,500 = $61,500
<span>Simplify ((1/x)-(1/y))/((1/x)+(1/y))</span>
y-x
______
y+x
