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4 years ago

Los jornales de dos obreros suman S/.60. Si uno de ellos gana S/.12

Mathematics

1 answer:

8_murik_8 [283]4 years ago

5 0

Answer:

Cada uno de ellos gana:

S/. 24

S/. 36

Step-by-step explanation:

Planteamiento:

a + b = 60

a = 12 + b

Desarrollo:

sustituyendo el valor de la segunda ecuación del planteamiento en la primer ecuación del planteamiento:

(12+b) + b = 60

2b + 12 = 60

2b = 60 - 12

2b = 48

b = 48/2

b = 24

de la segunda ecuación del planteamiento:

a = 12 + b

a = 12 + 24

a = 36

Check:

24 + 36 = 60

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Step-by-step explanation:

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3 years ago

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4 years ago

PLEASE HELP ME WITH THIS QUESTION what is -48-(-12)

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Step-by-step explanation:

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3 years ago

Read 2 more answers

The population of a town is increasing at a rate of 6.2% per year. The city council believes they will have to add another eleme

kow [346]

Answer:

The correct solution is "4.6".

Step-by-step explanation:

Given:

Interest rate,

r = 6.2%

or,

= 0.062

Amount,

A = 100000

Principle,

P = 76000

As we know,

⇒ $A=P(1+\frac{r}{100} )^n$

On substituting the values, we get

⇒ $100000=76000(1+\frac{6.2}{100} )^n$

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On taking log both sides, we get

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By putting the values of log, we get

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5 0

3 years ago

Show works please and do all of them for the 40 please because I need help

raketka [301]

Answer:

6 - Not similar

7 - Similar, 2x factor

8 - Similar, 3x factor

9 - Similar, 3x factor

10 - Not similar

11 - Similar, 5/3x factor

12 - x = 15

y = 25

z = 115

Step-by-step explanation:

8 0

3 years ago