Question

Pueden ayudarme en esto gracias

Answer 1

1)

1er piso:  x  = 32

2do piso: x/2 = 16

x + x/2 = 48

2x/2 + x/2 = 48

3x/2 = 48

3x  = 96

x = 32

2)

m: mayor

n: menor

m = 6n -----> m = 6(21) = 126

m + n = 147

6n + n = 147

7n = 147

n = 21

m = 126

3)

a , b , c             a + b + c = 238

a - 2b = 8 .....1

a - c = 18 .....2

En 1 y 2.

8 + 2b = 18 + c

2b - c = 10

b = (10 + c) / 2

En 2.

a = 18 + c

a + b + c = 238

(18 + c) + (10 + c)/2 + c = 238

2c +  (10 + c)/2 = 220

2x2c/2 + (10 + c )/2 = 220

5c + 10 = 220 x 2

5c + 10 = 440

5c = 430

c = 86

b = (10 + c) / 2 = (10 + 86)/2 = 48

a = 18 + c = 18 + 86 = 104

-----> a = 104 ; b = 48 ; c = 86

4)

p: padre

h: hijo

p + h = 83 ----> p = 83 - h

p - 3h = 3

(83 - h) - 3h = 3

83 - 4h = 3

80 = 4h

h = 20

p = 83 - h = 83 - 20 = 63

5)

J: jovencitos

S: señoritas

J + S = 60 -------> S = 60 - J

S - 2J = 15

60 - J - 2J = 15

60 - 3J = 15

45 = 3J

J = 15

S = 60 - J = 60 - 15 = 45