sushil44 sushil44
  • 19-02-2021
  • Mathematics
contestada

The number of solutions 2x+3y=4, x-y=3, 3x+5y=6 is​

Respuesta :

abidemiokin
abidemiokin abidemiokin
  • 24-02-2021

Answer:

one solution

Step-by-step explanation:

The number of solutions 2x+3y=4, x-y=3, 3x+5y=6 is​

Solving two of the equations simultaneously

2x+3y=4,  ... 1 *1

x-y=3 ... 2 * 2

_________

2x+3y = 4

2x-2y = 6

subtract

3y+2y = 4+6

5y = 10

y = 10/5

y = 2

Recall that x - y = 3

x - 2 = 3

x = 3+2

x = 5

Hence the solution has just one solution

Answer Link

Otras preguntas

A group of 9 people spent $78 to go to the movies. Adult tickets cost $10 each and student tickets cost $8 each. How many adult tickets were purchased?
Find the perimeter of a rectangle 12.5 cm. long and 3.5 cm wide
The average IQ of 4 people is 110. If three of these people each have an IQ of 105, what is the IQ of the fourth person ?
Why were roads significant to the roman republic and ancient cultures and religions of the same time period
reacts most vigorously with water a. Alkali metal b. Alkaline earth metal c. Transition metal d. Halogen e. Noble gas
What is 6/15 reduced
What is an equivalent fraction for 4 21/4
29,27,24,20,15... whats next
The water level in a swimming pool increased from 4.5 feet to 6 feet. What is the percent increase in the water rounded to the nearest tenth of a percent? Show
how did the British navy cause economic hardship for the colonies?