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Vsevolod [243]
2 years ago
7

If A: B = 5:7 and B: C = 3: 5, then A :B: C is: ​

Mathematics
2 answers:
Sindrei [870]2 years ago
7 0

Answer:

15 : 21 : 35

Step-by-step explanation:

Now, we see that both ratios contain B.

We need to find a common value for B so all values can be linked.

Multiply Ratio 1 by 3 and Ratio 2 by 7 :

⇒ A : B = 3 × 5 : 3 × 7 = 15 : 21

⇒ B : C = 7 × 3 : 7 × 5 = 21 : 35

Now we see B has the same value in both ratios.

Hence, the ratio we need to find is :

A : B : C = 15 : 21 : 35

mel-nik [20]2 years ago
6 0

Answer:

15:21:35

Step-by-step explanation:

to find this answer you must find a ratio in which both bs are the same

so

multiple a:b by 3 and b:c by 7

15:21 21:35

then you can put the bs together

15:21:35

that is your answer

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