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Vesna [10]
3 years ago
11

Solve for a and b. 40 30 5​

Mathematics
1 answer:
Zepler [3.9K]3 years ago
7 0
What kind of math is this first off
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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 \
Alex777 [14]

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

8 0
2 years ago
5x+6.5=8x-2.5 what does this mean and i would like to know how to solve this equation
Bingel [31]

The answer is x = 3

I hope this helped

6 0
3 years ago
Help<br>evaluate 12-3×2+1​
Feliz [49]

Answer:

7 hope this helps(✿◠‿◠)

Step-by-step explanation:

5 0
3 years ago
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What number makes the equation true?<br> + 13 = 47
olga_2 [115]

Answer:

x=34

Step-by-step explanation:

Just take 47-13=34

7 0
3 years ago
Eric and four of his friends are taking a trip across the New York State thruway they decide to split the cost of tolls equally
Free_Kalibri [48]

Answer: Since 5 is an odd number each person would then have to pay 1.60 each.

Step-by-step explanation:

7 0
3 years ago
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