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Svetlanka [38]
2 years ago
12

The ratio of the number of dolls Jacky had to the number of dolls Peter had was 5:2 but, after Jacky gave 15 dolls to Peter, the

y have an equal number of dolls. How many dolls did they have altogether?​
Mathematics
2 answers:
Sidana [21]2 years ago
5 0

Answer:

70

Step-by-step explanation:

I am good yeet

sleet_krkn [62]2 years ago
4 0

Answer:

70 dolls

Step-by-step explanation:

Hello!

The ratio is 5:2, which are division of  a whole. They can be represented as 5x and 2x.

Jacky has 5x dolls, and Peter has 2x dolls. They were equal after subtracting 15 dolls from 5x and adding them to 2x.

Equation:

  • 5x - 15 = 2x + 15

Solve:

  • 5x - 15 = 2x + 15
  • 5x - 30 = 2x
  • 5x = 2x + 30
  • 3x = 30
  • x = 10

So Jacky has 5(10) dolls, or 50 dolls, and Peter has 2(10) or 20 dolls.

The total sum is 70 dolls.

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Answer:

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Step-by-step explanation:

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Read 2 more answers
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alexgriva [62]

I assume you're supposed to establish the identity,

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Recall the double angle identity for sine:

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3 years ago
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