Respuesta :

claracrimson

Answer:

AC=7cm and CB=21

Step-by-step explanation:

1 to 3 ratio means you can just divide the total by four and mutiply by the ratio

28/4=7

7 x 1 = 7 cm

7 x 3 = 21 cm

and check your answer by addi gthe answer together, they should equal the total length of the line

21 + 7 = 28

solime

The question mentions to put AC and CB into a ratio.

AC:CB

1:3

The sum of the ratio is 1+3 = 4.

Line segment = 28cm

28 / 4 = 7

Now multiply the both sides of the ratio AC:CB by 7.

AC = 1 x 7

AC = 7

CB = 3 x 7

CB = 21

So the answer must be the second one.

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