Answer:
8304
Step-by-step explanation:
1 box=48 books
173 boxes=48x173
=8304
1/2 of an hour is = 30
288 / 4.30=67
The answer is 67 miles per hour.
Any transformation involving change of scale will not result in a congruent figure. Rotations and reflections and translations maintain congruence.
In parallelograms, opposite sides are congruent, meaning that they are the same lengths. So, we have:
y - 4x = 9
-x + 4 = y
Add x to both sides of the second equation:
y + x = 4
y - 4x = 9
This is a system of linear equations. Solve by eliminating the y and subtracting the two equations:
5x = -5
x = -1
Use x to solve for y:
y + (-1) = 4
y = 5
So, x = -1 and y = 5.
