1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ilya [14]
2 years ago
6

Considere as seguintes afirmações: I. O inverso de 0,2 é 5. II. O triplo de \frac{2}{5} é \frac{6}{15}. III. A metade de 0,5 é \

frac{1}{4}. É(são) verdadeira(s) a(s) afirmação(ões): Apenas a I; I e III; Apenas a III; I, II e III;
Mathematics
1 answer:
Alex777 [14]2 years ago
8 0

Answer:

I e III

Step-by-step explanation:

Recebemos declarações na questão acima para considerar.

Declaração I. O inverso de 0,2 é 5.

Matematicamente, isso é escrito como:

1 / 0,2

0,2 = 2/10

Portanto: 1 ÷ 2/10 = 1 × 10/2

= 5

Afirmação 1 é verdadeira

Declaração II.

O triplo de 2/5 é 6/15.

Triplo de 2/5 = 2/5 + 2/5 + 2/5

= 2 + 2 + 2/5

= 6/5

= 1 1/5

Declaração II é falsa

III. A metade de 0,5 é 1/5

1/2 de 0,5

= 1/2 × 0,5 = 0,25

Convertendo em fração

= 0,25 = 25/100

= 1/4

Declaração III está correta

Portanto, as afirmações verdadeiras são I e III

You might be interested in
What is the percent of change from 2000 to 300?
abruzzese [7]

Answer:

50%

Step-by-step explanation:

⠀⠀┏━╮╭━┓⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀┃┏┗┛┓┃⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀╰┓▋▋┏╯⠀⠀⠀⠀⠀⠀⠀⠀

⠀╭━┻╮╲┗━━━━━╮╭╮⠀

⠀┃▎▎┃╲╲╲╲╲╲╲┣━╯⠀

⠀╰━┳┻▅╯╲╲╲╲╲┃⠀⠀⠀

⠀⠀⠀╰━┳┓┏━┳┓┏╯⠀⠀⠀

⠀⠀⠀⠀⠀┗┻┛⠀┗┻┛⠀⠀⠀⠀

8 0
3 years ago
The level of a lake was 8 inches below normal. It decrease 1 1/4 inches in June and 2 3/8 inches more in July. What was the new
zloy xaker [14]

Answer:

Step-by-step explanation:

1

the initial level is below normal so it is represented by a negative number. the level continued to decrease in June and July so those changes are also represented by negative numbers. find the sum of these values to find what the new level was with respect to the normal level

2

write the mixed numbers as improper fractions

3

get common denominator

4

add the numerators since all the numbers are negative and have a common denominator. write the improper fraction as a mixed number

3 0
3 years ago
I need help with these two the same question just need to know whats y and x
Serjik [45]

Step-by-step explanation: A coordinate grid has two perpendicular lines, or axes (pronounced AX-eez), labeled just like number lines. The horizontal axis is usually called the x-axis. The vertical axis is usually called the y-axis. The point where the x- and y-axis intersect is called the origin

7 0
2 years ago
Can I get some help on this I have so many assignments to do and I just want to go to sleep
AfilCa [17]
Hi! It’s me from your other post! Here’s my work for you! It’s been awhile since I’ve done this stuff so I’m really sorry if I get you a bad grade! I just wanted to help out:))

7 0
2 years ago
A jar of marbles contains 120 marbles the larger jar of marbles contains one and 56 times as many marbles how many marbles are i
Papessa [141]
I think it’s 6721 marbles in the larger jar.
6 0
3 years ago
Other questions:
  • Is .7 the same as .70
    15·1 answer
  • To prepare for a presentation, pete colored 1/2 of the poster and rebecca colored 1/3 of the poster, what fraction still needs t
    13·1 answer
  • On your own paper, solve the system of equations using elimination and identify the solution. Always list your answer alphabetic
    10·1 answer
  • NEED HELP WITH THIS ASAP
    12·2 answers
  • B is between A and C. If AB = x - 5, BC = x + 14, and AC = 35 then x = ________ (just enter your answer as the number only)
    11·2 answers
  • Randi earned a profit of $60.00 on her last snow shoveling and
    9·1 answer
  • Help?
    9·2 answers
  • Standardized Test Practice
    14·1 answer
  • Television screen has 6 
    10·1 answer
  • ✓<br> What is the value of the expression below?<br> -8+ 9+8<br> 0<br> 11<br> 19<br> 35
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!