All Common Core: 7th Grade Math Resources
Example Questions
Example Question #501 : New Sat
If a rectangle possesses a width of and has a perimeter of
, then what is the length?
Possible Answers:
Correct answer:
Explanation:
In order to solve this problem, we need to recall the formula for perimeter of a rectangle:
We can substitute in our known values and solve for our unknown variable (i.e. length):
We want to isolate the to one side of the equation. In order to do this, we will first subtract
from both sides of the equation.
Next, we can divide each side by
The length of the rectangle is
All Common Core: 7th Grade Math Resources
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