sanaam2096
sanaam2096 sanaam2096
  • 14-02-2021
  • Mathematics
contestada

Solve the simultaneous equations.
xy = 4
x + y = 5​

Respuesta :

mariamalsuwaidi
mariamalsuwaidi mariamalsuwaidi
  • 14-02-2021
Answer:
if X=1 ; Y=4
if X=4 ; Y=1
Answer Link
Jsf09
Jsf09 Jsf09
  • 14-02-2021

Answer:

1,4

4,1

Step-by-step explanation:

y = 4/x

substitute

x + 4/x = 5

multiply the whole thing by x to make life easier

x^2 +4 = 5x

X^2 -5x +4 = 0

(x-1)(x-4)=0

x-1=0 x =1

x-4 =0. x=4

so there are 2 solutions

x=1. y = 4

x =4. y =1

Answer Link

Otras preguntas

The biggest reason for compromises on the slave issue was _____.
Fred has a bakery. He sells 40 cakes in a day. If his sales increased by 120%, how many cakes will he sell in a day?
Before the Hungarian revolution, the nation was part of the ______ and wanted out (A.European Union)( b. North Atlantic Treaty Organization) (C.United Nations)(
how many voyages did henry Hudson take
solve 2 3/4a=19 1/4
what are three characteristics of the Great Wall of China
On a coordinate graph, which of the following is TRUE of Quadrant 3? is it A. The x and y values are both positive. B. The x values are positive and the y va
A purpose is to have any of the following EXCEPT: A. an objective. B. a goal. C. an intention. D. a bad dream.
what pair of square numbers fit into 39
Mrs. Dubose speaks cruelly to Scout and Jem and is harsh with Atticus, yet Atticus is kind to her and considers her courageous. Why does Atticus treat her this