Answer:
The length of the pen is
The width of the pen is
Step-by-step explanation:
Let
x-----> the length of the pen
y----> the width of the pen
we know that
The perimeter of the pen is
so
------> equation A
-----> equation B
Substitute equation B in equation A and solve for x
Find the value of y
therefore
The length of the pen is
The width of the pen is
Answer:
It is incorrect because the following gives you a total of 171 and not 1.
Step-by-step explanation:
Answer:
A. 5x° + (2x + 7)° = 90°
Step-by-step explanation:
Complementary angles add up to give us 90°.
From the given diagram, we have a part of the angles on a straight line as a right angle. Which means it is 90°. Therefore, the other two angles, 5x° and (2x + 7)° will add up to give us 90°. Thus, 5x° and (2x + 7)° are complementary angles.
Therefore:
5x° + (2x + 7)° = 90°