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RSB [31]
2 years ago
14

Thirty students have planned picnic. The ratio of girls to boys is 3 : 7. How many boys are there?

Mathematics
2 answers:
noname [10]2 years ago
7 0
10 i think sorry if its worng
marshall27 [118]2 years ago
5 0

Answer:

10

Step-by-step explanation:

10

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motikmotik

Answer:

3y + 2x = 5

Step-by-step explanation:

3x-2y = -2

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3 = (-2/3)(-2) + c

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c = 3 - 4/3 = 5/3

y = (-2/3)x + 5/3

3y = -2x + 5

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Step-by-step explanation:

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