Elizabeth7838 Elizabeth7838

24-04-2014
Mathematics

contestada

What is the solution of the system of equations c+3d=8 and c=4d-6?
Show work plz.

Respuesta :

Аноним Аноним

26-04-2014

[tex]\left\{\begin{array}{ccc}c+3d=8\\c=4d-6\end{array}\right\\\\substitute:\\\\(4d-6)+3d=8\\4d+3d-6=8\ \ \ \ /+6\\7d=14\ \ \ \ /:7\\d=2\\\\c=4\cdot2-6=8-6=2\\\\\left\{\begin{array}{ccc}c=2\\d=2\end{array}\right[/tex]

Answer Link

Otras preguntas

Find the unit rate. 10 newspapers in 2 piles = newspapers per pile

What is 2.34x10^3x5.1x10^-2 in significant figures.

1. Elabora, a partir de la información que se presenta, una línea del tiempo que represente el último siglo de la historia de El Salvador.

A company whose common stock has a par value of $50 per share would be unable to issue stock if investors are unwilling to pay more than-------- -per share. O a

Is Canada‘s population is 1/10 of the United States and Canada‘s population is 32 million how many people live in the United States

how does citizen participation help achieve political and social change and shape public policy.

What is the relationship between resistivity of a wire and length of a wire is?

the mean of seven numbers is 15. when three numbers are added, the mean of ten numbers becomes 12. find the mean of the three numbers.

2.1.2 Name any TWO international institutions that standardise a country's indicators.(2 x 1) (2) 12 x 1) (2) 2.1.3 Mention any TWO negative effects of deflatio

What are the characteristics of a scientist?