1) The ratio 20 minutes to 1hour can be written 1:n. What is the value of n. 2) The scale on a map is 1:25000 how many kilometres on the ground is represented by 9 cm on the map?.

n=3 x=225,000km

Step-by-step explanation:

1hour=60mins

20:60

1:3

n=3

1/25000=9/x

x=9×25000

x=225,000km

hope it helps:)

step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°