martinovic5
martinovic5
22-04-2015
Mathematics
contestada
substitution
y=2x+5
x+2y=15
Respuesta :
Panoyin
Panoyin
23-04-2015
y = 2x + 5
x + 2y = 15
x + 2(2x + 5) = 15
x + 2(2x) + 2(5) = 15
x + 4x + 10 = 15
5x + 10 = 15
- 10 - 10
5x
=
5
5 5
x = 1
y = 2(1) + 5
y = 2 + 5
y = 7
(x, y) = (1, 7)
Answer Link
VER TODAS LAS RESPUESTAS ( 89+ )
Otras preguntas
How is theme treated when writing a response to literature essay?
choose the graph that shows the solution of the inequality on a number line c ≤ -1
What is the advantage of using a database? I. The information found there has been selected by experts in the field. II. It includes scholarly information that
Need help asap. -Imagine you are interviewing for two possible jobs—Assistant US Attorney and a defense attorney—by making a list of pro and cons. The purpose
Chef Kiro adds 1 6 of a bag of cranberries to each salad. How many bags will he need if he makes 10 salads?
PLEAZE HELP!!! explain why the spanish language is growing in belize. thank you
Which of the following religious leaders lived first? A. Muhammad B. Abraham C. Jesus D. Sultan Mehmed V
a triangle has two sides that are perpendicular. could the triangle be isosceles,equilateral, or scalene?explain
The united states went through a great deal of social changes between the 1950's and the 1980's which are touched upon in the film 'forrest gump'. what are they
Tiffany sells two kinds of homemade tomato sauce. A quart of her Tuscan sauce requires 6 tomatoes and 1 cup of oil. A quart of her marinara sauce requires 5 tom
