78621_23_MATEMÁTICA PARA NEGÓCIOS PRÁTICA ESPECIAL 1

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Matemática Para Negócios
Prática 1
	1. Determine o valor de x:
(a) x =
 (b) x =
 (c) x =
 (d) x =
(d) x = 5 . 0 (e) x = 0 . 0 (f) x = 
 (g) x = 
 (h) x = (-5) . 5 (i) x = (-5) . (-5)
	2. Determine o valor de x:
(a) x =
 
(b) x = 
��EMBED Equation.3(c) x = 
 (d) x = 
(e) x = 
 (f) x = 
 (g) x = 
 (h) x = 
(i) x = 
 (j) x = 
 (k) x = 
(l) x = 
 (m) x = 
 (n) x = 
	3. Determine o valor de x:
(a) x = 
 (b) x = 
(c) x = 
 (d) x = 
 (e) x = 
��EMBED Equation.3
	4. Determine o valor de x:
(a) x = 10 + 5 – 8 + 7 (b) x = 17 – 19 + 20 – 35
(c) x = 2 + 
 - 
 + 
 (d) x = 80 – 2.5 + 3.10
(e) x = 12 . 19 (f) x = 13 .21 (g) x = 75 .12
	5. Determine o valor de x:
(a) x = 
 (b) x = 10 . (8 .5 – 4.3)
	6. Determine o valor de x:
(a) x = 
 (b) x = 
 (c) x = 
 (d) x = 
(e) x = 
 (f) x = 
 (g) x = 
 (h) x =
(i) x = 2. { 5 – 10 [ 4 – 3 (8 – 6) + 10] – 5 + 4 . 2}
	7. Determine o valor de x:
(a) x = 
 (b) x = 
 (c) x = 
 (d) x = 
(e) x = 
 (f) x = 
(g) x = 
(e) x = 
	8. Determine o valor de x:
(a) x = 
 (b) x = 
 (c) x = 
 (d) x = 
(e) x = 
 (f) x = 
(g) x = 
(e) x =
	9. Determine os valores de x e y:
(a) 2 x - 3 y = 5 (b) 3 x + 12 y = 15
 x + 2y = 20 6 x + 24 y = 30
(c) 5 x – y = 7 (d) x + y = 10
 2 x + 3y = 13 x – y = 2
10. Determine os valores de x:
(a) 
+ 
 + 
= 0
(b) 
- 
 = 0
(c) 
- 
 + 16 = 0
(d) 
- 
 + 16 > 0
(e) ) 
- 
 + 16 ( 0
	11. Determine o valor de y
 para os valores de x
:
(a) y
 = 10 + x
 para y
 para os valores de x
 = 4
(b) y
 = 10 + 3 x
 para y
 para os valores de x
 = 2
(c) y
 = x
 para y
 para os valores de x
 = 1
(d) y
 = 10 x
 para y
 para os valores de x
 = 5
(e) y
 = 10 - x
 para y
 para os valores de x
 = 2
(f) y
 = 10 - 2 x
 para y
 para os valores de x
 = 3
(g) y
 = - x
 para y
 para os valores de x
 = -2
(h) y
 = - 10 x
 para y
 para os valores de x
 = -5
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