#1

Maths... never been my strong point. I've always preferred English.

Anyway, I am trying to scale a drawing I have. Basically, a 4m road is 0.6cm on my plan.

How many metres will 1cm be? Thanks in advance (and apologies if this is really obvious; as I said, never could get my head round even the most simple maths).

EDIT:

Another quick question....

If I am making a scale ruler, whereby 10cm = 66m.

66m is a bit messy, how many cm would it be to make it a nice 70m?

You know you all love it!

Anyway, I am trying to scale a drawing I have. Basically, a 4m road is 0.6cm on my plan.

How many metres will 1cm be? Thanks in advance (and apologies if this is really obvious; as I said, never could get my head round even the most simple maths).

EDIT:

Another quick question....

If I am making a scale ruler, whereby 10cm = 66m.

66m is a bit messy, how many cm would it be to make it a nice 70m?

You know you all love it!

*Last edited by fender_696 at Apr 24, 2011,*

#2

6.66

#3

cross-multiplication, dude.

4 ___

__0.6__=__1__4 ___

*x**Last edited by fearofthemark at Apr 24, 2011,*

#4

6.67

#5

1cm = 20/3 m

*Last edited by MakinLattes at Apr 24, 2011,*

#6

6 and two thirds.

^ Well, shit.

^ Well, shit.

#7

6.666667

#8

First, you determine how many times 0.6cm goes into 1 cm -> 1:0.6 = 1.66667 (one and two-thirds).

Then, you multiply 4 by 1.66667, and you should have the right amount of metres in a cm.

EDIT: Ninja'd, but I have an explanation!

Then, you multiply 4 by 1.66667, and you should have the right amount of metres in a cm.

EDIT: Ninja'd, but I have an explanation!

#9

Many thanks you lovely people.

#10

6.66m

edit- most of you are wrong. 6.66 is way cooler than 6.67(even though it will correctly round off to 6.67)

edit- most of you are wrong. 6.66 is way cooler than 6.67(even though it will correctly round off to 6.67)

*Last edited by dhruvrajvanshi at Apr 24, 2011,*

#11

cross-multiplication, dude.0.6=1

4 ___x

THIS X 10000000. Howcome so many people can't cross-multiply correctly? You can use it for about EVERYTHING.

#12

6.67

Like fearofthemark said, use cross-multiplication.

Like fearofthemark said, use cross-multiplication.

#13

With some explanation, so you can do it on your own next time:

4 meters corresponds with 0.6 cm

Therefore:

0.6 cm / 0.6 cm = 1

So if you divide 4 meter bij 0.6 you`ll know how much meter 1 cm is on scale.

4 / 0.6 = 6 2/3 or 6.67 meter.

Math is not so difficult bro, just learn how to apply it in the correct form/shape each time

4 meters corresponds with 0.6 cm

Therefore:

0.6 cm / 0.6 cm = 1

So if you divide 4 meter bij 0.6 you`ll know how much meter 1 cm is on scale.

4 / 0.6 = 6 2/3 or 6.67 meter.

Math is not so difficult bro, just learn how to apply it in the correct form/shape each time

#14

Another quick question....

If I am making a scale ruler, whereby 10cm = 66m.

66m is a bit messy, how many cm would it be to make it a nice 70m?

You know you all love it!

If I am making a scale ruler, whereby 10cm = 66m.

66m is a bit messy, how many cm would it be to make it a nice 70m?

You know you all love it!

#15

Another quick question....

If I am making a scale ruler, whereby 10cm = 66m.

66m is a bit messy, how many cm would it be to make it a nice 70m?

You know you all love it!

cross-multiplication, dude.

__10__=

*x*66 __70

or to make it simpler,

10 x 70 = 66

*x*

700 = 66

*x*

*x*= 700/66

*Last edited by fearofthemark at Apr 24, 2011,*

#16

Another quick question....

If I am making a scale ruler, whereby 10cm = 66m.

66m is a bit messy, how many cm would it be to make it a nice 70m?

You know you all love it!

Same concept:

66 70

10 x

X = 10 x 70/66 = calculate for yourself.

http://en.wikipedia.org/wiki/Cross-multiplication

#17

Sorted! Thanks again guys!

Well, you learn something new everyday....

Cross-multiplication, well, I never....

Well, you learn something new everyday....

Cross-multiplication, well, I never....