Answer:
Step-by-step explanation:
The system of equations (a) is the correct one for this situation. We must now solve this system for x and y, which are the unit costs.
Multiplying the 2nd equation by (-3/2) yields -12x - 18y = -168.
Now eliminate x by combining the two equations
12x + 5 y = 116
-12x -18y = - 168
-------------------------
-13y = -52, or y = 4.
If y = 4 then 12x + 5y = 116, or
12x +5(4) = 116, or
12x + 20 = 116, or
12x = 96, or x = 8
Roller pens are $8/dozen and ball point pens are $4 per dozen.
Answer:
565,463 and 565,863
Step-by-step explanation:
Answer:
0 slope as it is a horizontal line when you graph it
Step-by-step explanation:
Answer:
Yes. They are Right Triangles
Step-by-step explanation:
To determine if the triangles are right triangles, all you need to do is verify whether or not the dimensions satisfy the Pythagoras Theorem.
Pythagoras Theorem:
Note that in a right triangle, the l<u>ongest side is always the hypotenuse.</u>
Given the length of the sides 1.5 feet, 2.0 feet, 2.5 feet
Since the Pythagoras theorem holds, the triangles are in fact right triangles.
Answer:
C) tangent to a circle at a point
Step-by-step explanation:
