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

What is Odysseus the only man ever to do and survive? a. Sailing past Scylla and Charybdis b. Descending to Hades and safely returning c. Hearing the song o

In a litter of kittens, some of the kittens have coloring that is completely different from their parents. What is the explanation for this

Which armies has increased in size between 1870 aNd 1914?

The sum of a negative number 1/4 of the negative number and 7/16 of the negative number is -13 1/2. what is the negative number?

Since the Industrial REvolution, belief in power of the free market has been known as _____ in most countries. Select the best answer from the choices provided.

ways in which the Government is actively involved with the purpose of changing the economy with regard to unemployment or inflation (or deflation).

A deep sea diver’s depth is currently 30 m below the surface of the water. Which expressions represent a change in depth of d meters? Choose exactly two answers

Express the given quantity as a single logarithm and simplify: 3logx+2log(y-2)-5logx

5.2 more than the product of seven and a number

3x+7=5x-21 Find the value of x