odelllinkin2002
odelllinkin2002
01-11-2017
Mathematics
contestada
3x+5y=2 and 9x+11y=14 equals
Respuesta :
choixongdong
choixongdong
01-11-2017
3x+5y=2 (1)
9x+11y=14 (2)
multiply equation (1) by 3
9x + 15y = 6
so
9x + 15y = 6 (1')
9x + 11y =14 (2)
-------------------------subtract
4y = -8
y = -2
3x+5y =2
3x+5(-2) =2
3x - 10 = 2
3x = 12
x = 4
answer
(4, -2)
Answer Link
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
The first three terms of a sequence are given. Write your answer as a decimal or whole number. Round to the nearest thousandth (if necessary) 2, 5, 25/2 ,...
What is the probability of NOT rolling a "5" on a six-sided number cube? Group of answer choices 5/6 1/6 1/5 6/5
Name the principal pollutants that contribute to acid rain, and the main source of each
Jennifer, a high school senior, takes an official visit to your institution in the fall of her senior year. During the spring of her senior year, you institutio
4) CABC is a parallelogram BCD is a straight line. BD-3BC Mis the midpoint of Oc. OR 590 AB-y (a) Find, in terms of x and y. JAM
Tengo algunas maletas para factuar
Solve the equation using PEMDAS. 49÷7·3+(5-5)=
Trash accumulated on a jobsite does not necessarily indicate a ___ of work.
What percentage is 13 dollars of 16.25
A person donated $160,000 to a university to establish a scholarship fund. What is unusual is that the entire amount came from what the person was able to save
