Question

Can u guys PLEASE do this question 30 a

Answer 1

1/2 units (I'm not sure what units the scale is using).

Explanation:

We could setup a proportion. The trick to doing this is lining up corresponding parts.

The scale of a plan is 1 to 200.

We want to know the scale distance that represents the distance 100 m.

So we have:

1 to 200

x to 100

Setting up a proportion:

`(1)/(x)=(200)/(100)`

Cross multiply:

`100(1)=200(x)`

Divide both sides by 200:

`(100(1))/(200)=x`

`(100)/(200)=x`

`(1)/(2)=x`

`x=(1)/(2)`

So a 1/2 units in length on the scale represents 100 m.