Solving for Length

4th Grade Math · Learn by Concept

Help Questions

4th Grade Math › Solving for Length

1 - 10

What is the length of a rectangular room with a perimeter of and a width of

CORRECT

Explanation

We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.

Subtract from both sides

Divide by both sides

$\frac{50}{2}=\frac{2l}{2}$

What is the length of a rectangular yard with an area of and a width of

CORRECT

Explanation

$A=l\times w$

We have the area and the width, so we can plug those values into our equation and solve for our unknown.

$15=l\times 3$

$\frac{15}{3}=\frac{l\times 3}{3}$

What is the length of a rectangular room with a perimeter of and a width of

CORRECT

Explanation

We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.

Subtract from both sides

Divide by both sides

$\frac{64}{2}=\frac{2l}{2}$

What is the length of a rectangular room with a perimeter of and a width of

CORRECT

Explanation

We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.

Subtract from both sides

Divide by both sides

$\frac{28}{2}=\frac{2l}{2}$

What is the length of a yard with a perimeter of and a width of

CORRECT

Explanation

We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.

Subtract from both sides

Divide by both sides

$\frac{14}{2}=\frac{2l}{2}$

What is the length of a yard with a perimeter of and a width of

CORRECT

Explanation

We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.

Subtract from both sides

Divide by both sides

$\frac{10}{2}=\frac{2l}{2}$

What is the length of a room with a perimeter of and a width of

CORRECT

Explanation

We have the perimeter and the width, so we can plug those values into our equation and solve for our unknown.

Subtract from both sides

Divide by both sides

$\frac{20}{2}=\frac{2l}{2}$

What is the length of a rectangular room with an area of and a width of

CORRECT

Explanation

$A=l\times w$

We have the area and the width, so we can plug those values into our equation and solve for our unknown.

$63=l\times 9$

$\frac{63}{9}=\frac{l\times 9}{9}$

What is the length of a rectangular room with an area of and a width of

CORRECT

Explanation

$A=l\times w$

We have the area and the width, so we can plug those values into our equation and solve for our unknown.

$90=l\times 15$

$\frac{90}{15}=\frac{l\times 15}{15}$

What is the length of a rectangular yard with an area of and a width of

CORRECT

Explanation

$A=l\times w$

We have the area and the width, so we can plug those values into our equation and solve for our unknown.

$8=l\times 4$

$\frac{8}{4}=\frac{l\times 4}{4}$

Return to subject

AI Study CoachYour personal study buddy

Instant TutoringConnect with a tutor now

Request a TutorGet matched with an expert

Live ClassesJoin interactive classes

Question of the DayDaily practice to build your skills

FlashcardsStudy and memorize key concepts

AI SolverStep-by-step problem solutions

Learn by ConceptMaster concepts step by step

Practice TestsTest your skills with exam questions

QuizzesTest your knowledge with a quiz

GamesLearn through free games