trangtran202 trangtran202

03-10-2017
Mathematics

contestada

How do you know that substitution gives the answer to a system of equations?

Respuesta :

whosmarlene whosmarlene

03-10-2017

You put in the answers you got for your variables into one of the equations. If it gives you the correct answer then you solved it, if it's different then either it doesn't work or one of the steps wasn't completed correctly or at all.

Answer Link

Otras preguntas

Harper wrote the expression 15-6+7 to represent "15 minus the sum of 6 and7 evaluate 15 -6+7 and then explain why Harper expression is incorrect

Which element provides strength to bones?

The membrane surrounding the ovary is the tunica albuginea. True or False

Half of a number, x, increase by 7 is greater than -11 and less than-3. What are the possible solutions?

The sum of two numbers is 24. The second number is 4 more than the first number. Let a represent the first number and let b represent the second number. What ar

Kathy is looking at a stack of books at a local bookstore, when Diana brushes past her, gently pushing Kathy. "wow, she is very rude," Kathy thinks. this is an

Which statement best explains the meanings of the related words in the paragraph? The Pacific Northwest has a rainy climate. About two thirds of the precipitat

Is the function g(x)= - 10 x+ 10 3 linear or nonlinear?

What president financed his early political career with money earned from poker?

a solution has a pH of 5.4. write the formula you will use to calculate the (H+)