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Butoxors [25]
3 years ago
10

Please, Help!

Mathematics
1 answer:
Veronika [31]3 years ago
7 0

Answer:

adults = 40

children = 68

Step-by-step explanation:

Let the children=c

Let the adults = a

<em><u>Equations</u></em>

a + c = 108                 (1)

3.75a + 1.5c = 252    (2)

Multiply (1) by 1.5

1.5a + 1.5c = 162        (3)

Subtract (3) from (2)

3.75a + 1.5c = 252

1.5   a + 1.5c = <u>162</u>    Subtract

2.25a             = 90   Divide by 2.25

a = 90/2.25

a = 40

<em><u>Find the number of children</u></em>

a + c = 108

40 + c = 108

c = 108 - 40

c = 68

<em><u>Check</u></em>

LHS

3.75 * 40 + 1.50 * 68

150 + 102

252 Which checks with the right hand side.

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Answer:

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Step-by-step explanation:

we have

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therefore

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