help please!!!

- anonymous

help please!!!

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- anonymous

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- MrNood

This is EXACTLY the same problem as I spent 2 hours on with oyu this week and you contributed NOTHING
If you had tried to do that then yu would know how to do this.
Multiply both sides by the scale factor to get the length of the real room in inches

- anonymous

ok sooo... thats the first step? @MrNood

- anonymous

l*w =a or 6*4=24
@MrNood you dont have to be mean about it

- anonymous

24 before scale factor whats your scale factor

- anonymous

20?

- anonymous

ok i think its 20*24=480

- anonymous

thanks for the help @douglas101 but let @MrNood help me :)

- anonymous

ok good luck

- MrNood

It ells you in the drawing the scale is 1:40
this means the drawing is 40 times smaller than the room
so multiply the drawing sizes (6" and 4") by 40 to get the lengths of the sides of the real room

- anonymous

so i have to do 6 x 40 and 4 x 40?

- MrNood

SO
the scale length of the room is 6" means the real length of the room is ?? inches
the scale width of the room is 4 inches means the real width of the room is ?? inches

- MrNood

yes - do what you said above

- anonymous

ok..
6 x 40 = 240
4 x 40 = 160
@MrNood

- anonymous

@MrNood ??

- MrNood

SO
the scale length of the room is 6" means the real length of the room is 240"
the scale width of the room is 4"means the real width of the room is 160"
The area of the room is
length x width
length = 240"
width = 160"
so Area = ??? square inches?

- anonymous

so for area i have to do this..
240 x 160?

- MrNood

Yes - that wil give you the area in square inches
do that first (but it is not quite the answer yet....)

- anonymous

ok its.. 38,400

- MrNood

Correct you need to put in the units:
Area of room = 38400 square inches
but th equestion asks for the answer in square feet

- MrNood

SO|dw:1432837996502:dw|
IF you had tiles which were 1" square how many would you need to fill 1 square foot?
12" wide by 12" long

- anonymous

1 right?
@mrnood

- MrNood

you have a tile which is 1INCH on each side
you have a square which is 12 inches on each side (see my diagram)
How many little tiles will fill the big square?

- anonymous

oh! is it 12

- MrNood

no
12 would just make 1 row
look at my diagram
you need 12 rows of 12 tiles to fill the big square
how many is that?

- anonymous

24?

- anonymous

@MrNood

- anonymous

or 144?

- MrNood

no - that would fill 2 rows
LOOK at my diagram
|dw:1432838940902:dw|
you have 12 tiles in each row
there are 12 rows
in 1 row 12
in 2 rows 24
in 3 rows 36
.
.
.
in 12 rows ???