# Problema de matematica

Páginas: 2 (267 palavras) Publicado: 14 de maio de 2011
1)
a) [pic]

b) [pic]

c) [pic]

d) [pic]

e) [pic]

f)[pic]

g) [pic]
2)[pic]
a) [pic]
b) [pic]
c) [pic]
d) [pic]
e) [pic]

3) (375∙2/5)=750/5=150
150-6=144
375-144=231

(231∙1/3)=231/3=77
77+18=95375-144-95=136

4) (-3)[pic].[-9 + (-3)[pic]]:(-3)[pic] = [pic]

5) 4X + 2Y = 8,96
4X =8,96 – 2Y
X = [pic]
2X + 3Y = 9,48
[pic]

2x+ 4x + x = 42
7x = 42
x = 42/6
x = 6

Flavio Recebe 6
Ana recebe 6.2 = 12
Aldenir recebe 12.2 = 24

a) X= [pic]

b) 3n = 7 + 17n= [pic]
n=8

c) 4y = y – 10 -12
4y = y – 22
4y – y = 22
y = [pic]
d) 3(2x-1)+6x = 4-(+8)
6x - 3 = 4 –6 + 6x
6x – 6x = -1
[pic]
16 - 3x = 2x + 41
-3x -2x = 41-16
-5x = 25
X=25/-5
X= -5

9) 3 - 2x = 5.(x-11)
3 - 2x= 5x – 55
-2x – 5x = -58
-7x = -58
X = 58/7
X = 8,28

ficam entre 8 e 9 inteiros

x + (x + 140) = 580
2x + 140 = 580
2x = 580 – 140X = 440 / 2
X = 220

X +140
220 + 140 = 360

Caixa1=220
Caixa2=360
220 + 360 = 580
11)
[pic] [pic]
8 x
X =3240 / 35 = 92,57

60=30
80 = x
60/80 = x/30
80x = 30.60
X = 1800 / 80
X =22,5

13) 15 600
40 x

15 x=24000
X = 24000 / 15
X = 1600

14) 24,5 28
X 54
28 X = 1323
X = 1323 / 28
X = 47,25 KM

Por favor, assinar para o acesso.
The text passage contains a series of mathematical problems and their solutions, ranging from basic arithmetic to algebraic equations. Each problem is presented with a corresponding solution.
multiple_questions_with_answers
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
# Problema de matematica

Páginas: 2 (267 palavras) Publicado: 14 de maio de 2011
1)
a) [pic]

b) [pic]

c) [pic]

d) [pic]

e) [pic]

f)[pic]

g) [pic]
2)[pic]
a) [pic]
b) [pic]
c) [pic]
d) [pic]
e) [pic]

3) (375∙2/5)=750/5=150
150-6=144
375-144=231

(231∙1/3)=231/3=77
77+18=95375-144-95=136

4) (-3)[pic].[-9 + (-3)[pic]]:(-3)[pic] = [pic]

5) 4X + 2Y = 8,96
4X =8,96 – 2Y
X = [pic]
2X + 3Y = 9,48
[pic]

2x+ 4x + x = 42
7x = 42
x = 42/6
x = 6

Flavio Recebe 6
Ana recebe 6.2 = 12
Aldenir recebe 12.2 = 24

a) X= [pic]

b) 3n = 7 + 17n= [pic]
n=8

c) 4y = y – 10 -12
4y = y – 22
4y – y = 22
y = [pic]
d) 3(2x-1)+6x = 4-(+8)
6x - 3 = 4 –6 + 6x
6x – 6x = -1
[pic]
16 - 3x = 2x + 41
-3x -2x = 41-16
-5x = 25
X=25/-5
X= -5

9) 3 - 2x = 5.(x-11)
3 - 2x= 5x – 55
-2x – 5x = -58
-7x = -58
X = 58/7
X = 8,28

ficam entre 8 e 9 inteiros

x + (x + 140) = 580
2x + 140 = 580
2x = 580 – 140X = 440 / 2
X = 220

X +140
220 + 140 = 360

Caixa1=220
Caixa2=360
220 + 360 = 580
11)
[pic] [pic]
8 x
X =3240 / 35 = 92,57

60=30
80 = x
60/80 = x/30
80x = 30.60
X = 1800 / 80
X =22,5

13) 15 600
40 x

15 x=24000
X = 24000 / 15
X = 1600

14) 24,5 28
X 54
28 X = 1323
X = 1323 / 28
X = 47,25 KM

Por favor, assinar para o acesso.
user
The text passage contains a series of mathematical problems and their solutions, ranging from basic arithmetic to algebraic equations. Each problem is presented with a corresponding solution.

TYPE: MULTIPLE_QUESTIONS_WITH_ANSWERS