Please her 7th grade problem is do tomorrow?

Question

Billie needs to make a tower of soup cans as a display in a grocery store.Each layer of the tower will be in the shape of a rectangle with two cans as the top (first) layer. The length and width of each layer will be one less than the layer below it.

How many cans do you need for the fifth layer of the tower?

How many total cans do you need for a 10-layer tower?

Thanks, please show work.

Answer 1

Your learning this in school it shouldnt be that hard if your paying attention

Answer 2

Shouldnt You Be Doing This By Yourself.

Answer 3

the fifth layer will be 5x6

1*2+2*3+3*4+4*5+5*6+6*7+7*8+8*9+9*10+1...

use a calculator

Answer 4

Just work out the problem. Yahoo Answers isn't here to do your homework.

Answer 5

just be urself

Answer 6

Here's the equation:

total cans=2x10

Answer 7

ok lets try to make a little visual aide

c=can

layers-

1                                         cc

2                                        ccc                            

3                                       cccc    

4                                      ccccc    

5                                     cccccc                    

6                                    ccccccc

7                                   cccccccc

8                                  ccccccccc

9                                 cccccccccc    

10                              ccccccccccc

now count the cans

if for every layer you would add a can so that the number of cans wouldnt be the same as the layer number

2+3+4+5+6+7+8+9+10+11=

lets shorten that equation

5+9+13+17+21=

it equals 65

and if you are using cans at a regular rate the price would be about 68 cents to a dollar 28

hope i helped

Answer 8

1st layer 1*2=2

2nd layer 2*3=6

3rd layer 3*4=12

4th layer 4*5=20

5th layer 5*6=30

6th layer 6*7=42

Keep going and just add up the number of cans at the end.

You do realize, you are doing your child's homework by asking someone to do it for you.....  As you can see, this is a thought excercise and the formula themselves aren't hard at all.  The point is, your child develops an ability to read a problem, and turn it into mathmatical formulas.

You could write the cans on paper and actually draw this out, and teach your child how this can be turned into formulas.

Good luck.