If what ? What is the If part, so I can help answer your question.
90 + 20x + 10x = 180
30x = 90
x = 3
Yes, these are equivalent
In this question, you know that the machine packs

of a box every

of a minute. Since it is constant, you simply have to double the half a minute to a full minute and then also double the rate to get

boxes packed per minute. And

is equal to
Answer: The figure drawn by Alan is a rhombus.
Step-by-step explanation:
Given: Allan drew a polygon with 4 sides and 4 angles with two properties:-
- All four sides are equal.
- None of the angles are right angles.
We know that only a rhombus is a flat shape with 4 equal straight sides and 4 angles .All sides have equal length. Its angles need not to be right angle.
Therefore, the figure drawn by Alan is a rhombus.