I would maybe say a Rhombus. They have two likes of symmetry ^^ Hope this helps!
Answer:
A. y = x+10
Step-by-step explanation:
The original test score is x
And in the next assignment it is 10 more means,
x + 10
If the new score is y then it should be equal to the above solution.
Hence, answer is <u>y</u><u> </u><u>=</u><u> </u><u>x</u><u>+</u><u>10</u><u>.</u>
----------------------------------
Define x :
----------------------------------
Let the width be x.
Width = x
Length = 2x + 5 // Length is 5ft longer than twice the width
----------------------------------
Formula for Perimeter :
----------------------------------
Perimeter = 2 (Length + Width)
----------------------------------
Find Width :
----------------------------------
58 = 2 ( 2x + 5 + x) // Substitute Length and Width into formula
58 = 2 (3x + 5) // Combine like terms
58 = 6x + 10 // Apply distributive property
48 = 6x // Take away 10 from both sides
6x = 48 // Switch sides. Make x the subject
x = 8 // Divide by 6 on both sides
----------------------------------
Find Length and Width :
----------------------------------
Width = x = 8 ft
Length = 2x + 5 = 2(8) + 5 = 21 ft
--------------------------------------------------------------------
Answer: The length is 21 ft and the width is 8 ft.
--------------------------------------------------------------------