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3 years ago

SOMEONE HELP PLEASE! A lot of points!

Mathematics

1 answer:

Alik [6]3 years ago

4 0

Answer:

First, you have to form simultaneous equation for both of their ages in yerms of a and b :

b = 4a - 12 -------- ( 1 )

a + b = 28 -------- ( 2 )

Next, you will have to solve it by substituting ( 1 ) into ( 2 ) :

a + (4a - 12) = 28

5a - 12 = 28

5a = 28 + 12

5a = 40

a = 8

Then, substitute a = 8 into ( 1 ) :

b = 4(8) - 12

b = 32 - 12

b = 20

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Extraemos los datos del problema:

Capital Inicial → C₀ = S/.25000
Interés bimestral → i = 8 % = 0.08
Periodos → n = 3

<h2 /><h2>Bimestre 1:</h2>

Capital Inicial Bimestre → C = S/.25000

Tasa de interés bimestral:

I = C×i

I = S/.25000 × 0.08

I = S/.2000

Monto final:

M = C + I

M = S/.25000 + S/.2000

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Variación Porcentual:

% = (M - C₀) / C₀

% = ( 27000 - 25000) / 25000

% = 8

<h2>Bimestre 2:</h2>

Capital Inicial Bimestre → C = S/.27000

Tasa de interés bimestral:

I = C×i

I = S/.27000 × 0.08

I = S/.2160

Monto final:

M = C + I

M = S/.27000 + S/.2160

M = S/.29160

Variación Porcentual:

% = (M - C₀) / C₀

% = ( 29160 - 25000) / 25000

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<h2>Bimestre 3:</h2>

Capital Inicial Bimestre → C = S/.29160

Tasa de interés bimestral:

I = C×i

I = S/.29160 × 0.08

I = S/.2332.8

Monto final:

M = C + I

M = S/.29160 + S/.2332.8

M = S/ 31492.8

Variación Porcentual:

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% = ( 31492.8 - 25000) / 25000

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3 years ago

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Jobisdone [24]

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kow [346]

Answer:

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3 years ago