# math

posted by .

Mike has made a rectangle using 48 square tiles. If he adds the length and width of his rectangle together he gets a prime number. What is the length and width of the rectangle?

• math -

If he adds length and width to get a prime, then their sum must be odd. So, one of the terms is even, the other odd. The only factors of 48 that fit these conditions are 3 and 16

3*16 = 38
3+16 = 19 a prime

• math -

oops: 3*16 = 48

## Similar Questions

1. ### algebra , help

Can someone help me set up the equations thanks. Directions: Solve each of the following applications. Give all answers to the nearest thousandth. Problem: Geometry. The length of a rectangle is 1 cm longer than its width. If the diagonal …
2. ### basic geometry

A rectangle has width the same asa a side of a square whose perimeter is 20m.the length of the rectangle is 9m. Find the perimeter of this rectangle. 34. The with of a rectangular picture is on-half the length . The perimeter of the …
3. ### math

jennifer has made a rectangle using 48 square titles. if she adds the length and width of her rectangle together she gets a prime number . what is the length and width of jennifers rectangle?

I don't understand can you help me? Alicia has made a rectangle using 24 square tiles. If she adds the length and width of her rectangle together, she gets 11. What is the length and width of Alicia's rectangle?
5. ### math

fran made a rectangle with 36 square tiles.the sum of the length and width is 15.what are the length and width of her rectangle?
6. ### math algebra

represent the given condition using a sing variable, x. The length and width of a rectangle whose length is 12 centimeters more than its width. the width of the rectangle is _____. The length of the rectangle is ____.
7. ### math

if you have a rectangle using 24 squares tiles and if you add the length and the width of the rectangle together and get11. what is the length and width of your rectangle?
8. ### math

A rectangle was constructed using 24 square tiles. If you add the length and width of her rectangle together, you would get 11. What is the length and width of this rectangle?
9. ### Math

All these are either rectangles or squares 1.Rectangle. 5 is length and 10 is width 10x5=50 2.Square. 5 is length and 5 is width 5x5=25 3.Rectangle. 6 is length and 8 is width 8x6=48 4.Square. 10 is length and 10 is width 10x10=100 …
10. ### math

A rectangle made of square tiles measures 10 tiles long and 8 tiles wide. What is the width of a similar rectangle whose length is 15 tiles?

More Similar Questions

Post a New Question