Question

A scale drawing has a scale of 1/4 inch : 12 ft Find the length on the drawing for each actual length.
1. 8ft
2.15ft
help!

Answer 1

Find out what 1 ft would be: (1/4)/(12)= (1/4)(1/12)=1/48 inch : 1 foot
Now 8 ft would be represented by 8 * (1/48) = 1/6 inch on the drawing.
2. 15 times 1/48 = 15/48= 5/16 inch on the drawing.

Answer 2

i still don't understand ???

Answer 3

Do you understand scale? !/4 inch on the drawing represents 12 ft in the reaL world.
That is what the scale 1/4 inch : 12 ft means. That was given, that means a line 1/4 inch long represents a dimension of 12 feet. Like on a road map ....undertstand the concept??

Answer 4

yes i understand that

Answer 5

Now carry this a step further, a line 1/2 inch which is twice 1/4 inch would represent a dimension of 24 ft which is twice the 12 ft.

Answer 6

okay

Answer 7

and a line which is 1/8 inch which is 1/2 as long as 1/4 would represent a dimension of 6 feet (1/2 of the 12).

Answer 8

You were asked how long is the line on the drawing that would: 1. represent 8 ft and 2. how long would the line be to represent 15 ft.

Answer 9

yea / sorry i just struggle in math and am frustrated now..

Answer 10

Since both dimensions were in feet, it would be easy to solve these to find out how long would a line have to be to represent 1 foot. Then 1. multiply that by 8 solving 1. and multiply by 15 solving 2.

Answer 11

The line that would represent 1 foot would be 1/12 as long as the line which represented 12 feet. Well 1/4 in represented 12 feet, so divide 1/4 by 12 getting 1/48 in. which would be equal to 1 foot in the real world. Now you got it made.

Answer 12

8 times 1/48= 1/6 for the first
15 times 1/48 =15/48 = 5/16 for the second measurement.

Answer 13

Focus and clear the frustration.

Answer 14

Don't give up and leave, if you really want help stay with it.

Answer 15

sry my computer froze up

Answer 16

Please review the posts after your previous post.