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 ( 85+ )
Otras preguntas
How would you say "serve the food" to someone you don't know very well? A. Sirves la comida B. Sirve la comida C. Sirvas la comida D. Sirva la comida
what is 1 divided by 1/3
Aneesha travels at a rate of 50 miles per hour. Morris is traveling 3 feet per second less than Aneesha. Which is the best estimate of the speed Morris is trave
There are 4 oranges, 7 bananas, 5 apples in a fruit basket. Ingrid selects a piece of fruit at random. After Ingrid selects her piece of fruit, Terrance selects
where were the death camps located, how did this location reflect the goal of the final solution?
The regions that make up the area known as Oceania are _____. all that apply A.Antarctica,B.Melanesia,C.Micronesia,D.Polynesia,E.Tasmania
What are the most popular songs in the nutcracker?
how many moles are in 25 g of NaCl
2 doctors is what percent of 25 doctors?
The population of lizards on one island is 4.05 million, and the population of lizards on another island is 2.1 million. What is the difference in the populatio
