(a 3 - 2a + 5) - (4a 3 - 5a 2 + a - 2)
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The system of equations 2x + 3y = 2 and y = (1/2)x + 3 have solutions at x = -2 and y = 2
<h3>What is an equation?</h3>An equation is an expression that shows the relationship between two or more numbers and variables.
From the system of equations 2x + 3y = 2 and y = (1/2)x + 3, the graph of the equation shows that the solution is at x = -2 and y = 2
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Usando proporciones, se encuentra que 400 africanos han participado.
En total, hay x participantes.
de los corredores son europeos, o sea:
Los americanos son la dècime parte de los europeos, o sea:
Los africanos son la quinta parte de los americanos, o sea:
En la carrera han inscritos 24 000 participantes, o sea, . Por eso, la cantidad de africanos es:
Para obtener más información sobre las proporciones, puedes visitar a brainly.com/question/24615636