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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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cupoosta [38]
I'll offer you a deal in return for your 5 points:  I'll solve it . . . . You check it.

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Add  7  to each side:            -1/2 x  =  -4

Multiply each side by  2 :      - x  =  -8

Multiply each side by  -1 :     <em> x  =  8</em>

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Lilit [14]

Hey!

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I'm going to assume that the value of t is x.

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Steps To Solve:

3(x - 2) = 6

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→ 3x + (-6) + 6 = 6 + 6

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20x+20-4-15x=96-32 solution??
svetoff [14.1K]

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(next: then combine like terms)

<em>5x</em>+16=64

(next: subtract 16 from 64)

<em>5x</em>=48

(next: divide 48/5)

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