Solve Applications with Systems of Equations: exemplo 5.36

Problema e solução em inglês, como no livro original.

Translate to a system of equations:

A married couple together earns $110,000 a year. The wife earns $16,000 less than twice what her husband earns. What does the husband earn?

Resolva no papel primeiro. Depois abra a solução um passo de cada vez e pare assim que conseguir terminar sozinho.

Sua vez

O Try It do livro logo depois deste exemplo: mesma ideia, outros números. Só a resposta é dada.

Translate to a system of equations:

A couple has a total household income of $84,000. The husband earns $18,000 less than twice what the wife earns. How much does the wife earn?

Como foi?

We are looking for the amount that the husband and wife each earn.	Let $h =$ the amount the husband earns. $w =$ the amount the wife earns.
Translate.	A married couple together earns $110,000.
	$w + h = 110,000$
	The wife earns $16,000 less than twice what husband earns.
	$w = 2 h - 16,000$
The system of equations is:	${\begin{matrix} w + h = 110,000 \\ w = 2 h - 16,000 \end{matrix}$

We are looking for the amount that the husband and wife each earn.	Let $h =$ the amount the husband earns. $w =$ the amount the wife earns.
Translate.	A married couple together earns $110,000.
	$w + h = 110,000$
	The wife earns $16,000 less than twice what husband earns.
	$w = 2 h - 16,000$
The system of equations is:	${\begin{matrix} w + h = 110,000 \\ w = 2 h - 16,000 \end{matrix}$