Respuesta:
X == Camisa==19.99
Y == Corbata==29.99
Explicación paso a paso:
Chris
3 camisas
2 corbatas
por $ 109.95
Rigo
4 Cam
1 cor
$119.95
3x+2y=119.95
4x+y=109.95
y= 109.95 - 4x
Entonces
3x+2(109.95-4x) = 119.95
3x+219.9-8x = 119.95
219.9-119.95=5X
99.95=5x
19.99= X
y= 109.95 -4(19.99)
y= 109.95 - 79.96
y= 29.99
Comprobamos
3x+2y= 119.95
3(19.99)+2(29.99)=119.95
59.97+59.98=119.95
Sale correcto
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Verified answer
Respuesta:
X == Camisa==19.99
Y == Corbata==29.99
Explicación paso a paso:
Chris
3 camisas
2 corbatas
por $ 109.95
Rigo
4 Cam
1 cor
$119.95
3x+2y=119.95
4x+y=109.95
y= 109.95 - 4x
Entonces
3x+2(109.95-4x) = 119.95
3x+219.9-8x = 119.95
219.9-119.95=5X
99.95=5x
19.99= X
y= 109.95 - 4x
y= 109.95 -4(19.99)
y= 109.95 - 79.96
y= 29.99
X == Camisa==19.99
Y == Corbata==29.99
Comprobamos
3x+2y= 119.95
3(19.99)+2(29.99)=119.95
59.97+59.98=119.95
Sale correcto