Word Problems & Equations Review

Flashcard
•
Mathematics
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for the perimeter of a rectangle?
Back
The perimeter (P) of a rectangle is given by the formula: P = 2(length + width).
2.
FLASHCARD QUESTION
Front
If the length of a rectangle is 4 inches more than twice the width, how can this relationship be expressed algebraically?
Back
Let width = w. Then, length = 2w + 4.
3.
FLASHCARD QUESTION
Front
Back
Multiply both sides by 2 to isolate the term with x.
4.
FLASHCARD QUESTION
Front
How do you find the width of a rectangle if the length is 3 times the width and the perimeter is known?
Back
Set up the equation: P = 2(length + width) and substitute length with 3w.
5.
FLASHCARD QUESTION
Front
What are consecutive numbers?
Back
Consecutive numbers are numbers that follow each other in order, such as n, n+1, n+2.
6.
FLASHCARD QUESTION
Front
How do you set up an equation for the sum of three consecutive numbers?
Back
Let the first number be n. The equation is: n + (n+1) + (n+2) = sum.
7.
FLASHCARD QUESTION
Front
Back
The solution is x = 3.
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