There are 20p coins and 10p coins on a desk in the ratio 1 : 6. If there are 10 more 10p coins than 20p coins, what is the value of 1 part in this ratio?

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

current in the circuit at time t is /, then the power delivered to the resistor is

step-by-step explanation:

ιт ιѕ 6 6/23

step-by-step explanation:

нσρє ι ¢συℓ∂ нєℓρ уσυ συт