# Pre-Algebra

posted by .

Well, this problem is really stumping me, so here it is.

Directions: In each problem, first draw a picture of the situation to the right of the problem. Then decide whether the problem involves measuring length or area growth to help you answer the questions.

1. It costs Mrs. Jones \$400 to carpet the small room shown. She has another room twice as long and twice as wide. How much will it cost her to carpet the bigger room with carpeting?

The picture shows a rectangle with no shown dimensions.

So, how am I suppose to start off?

-Sorry for the grammar mis-splled, I just type-read from the paper.

• Pre-Algebra -

For this problem you need the area to find how much carpet is needed. Since I'm not a math teacher, I had to try a few possible dimensions to form a conclusion.

If the small room were 10 feet by 10 feet, then its area is 100 square feet.

That means the large room is 20 by 20 or 400 square feet.

Conclusion: it will cost 4 times as much to carpet the large room.

• Pre-Algebra -

Would it be \$800?

• Pre-Algebra -

When I went to school 4 times 400 was not 800.

• Pre-Algebra -

It says twice as wide, not four times..

• Pre-Algebra -

Nevermind, it says twice as long/wide.

• Pre-Algebra -

let the original be x by y, so the area is xy
the new is 2x by 2y , so the new area is 4xy

so it is 4 times as large, as Ms Sue told you

## Similar Questions

1. ### math,algebra

Can someone help me with this problem I don't understand what to really do or even how to graph them I show what i have so far. Directions: Solve each of the following systems of linear inequalities graphically. Problem:
2. ### Algebra

How do I work this problem, it is not a homework problem but a problem similar to a homework problem. I know i need to factor the left side of the problem. here is what I have so far.. x^2-2x+1=7 x^2-2x+1-7=7-7 x^2-2x-6=0 here is where …
3. ### Algenra

How do I work this problem, it is not a homework problem but a problem similar to a homework problem. I know i need to factor the left side of the problem. here is what I have so far.. x^2-2x+1=7 x^2-2x+1-7=7-7 x^2-2x-6=0 here is where …
4. ### algebra 2

i need help with my algebra 2 homework, the section is called using matrices to represent data. here is one of the problems: -1/2A+(B-A) A=[7 3 -1 5] [-2 8 0 -4] and B= [6 0 11 -3] [-5 2 -8 9] i don't know how to do this problem and …
5. ### math

for the following equations, write a word problem draw a picture, and find the solution to the equation. 5/12 - 1/3=?
6. ### Algebra

Can someone help me factor this problem? Generally I wouldn't have a problem doing it, but today we're supposed to factor problems without knowing what exactly to do, (Trinomial squares, difference of squares, magic diamond, etc),
7. ### Math

Hello there! Could You please help me with this Geometry word problem?
8. ### Math

Hello there! Could You please help me with this Geometry word problem?
9. ### Algebra

Use the above graph of f(x) to complete the following table for values of its inverse function, f^{-1}(x). The graph has a point on (2,2)the y-intercept is 4 the x intercept is 3 x =-4, 8, 0, -2, 2 f^{-1}(x) Note: You can earn partial …
10. ### Physics

Ok so this is just a small understanding problem, I do not want you to actually help me solve the problem, here it goes: A cylinder with mass 3kg slides on ice with its base surface at 5m/s and collides with an identical but stationary …

More Similar Questions