03-04-2021
Mathematics

contestada

Solve 5x-y=5 and 2y-x^2=11 without using trial improvement

Respuesta :

thebecks thebecks

03-04-2021

Answer:

x = 7, y = 30 and x = 3, y = 10

Step-by-step explanation:

5x - y = 5, then y = 5x - 5

2y - x^2 = 11

2(5x - 5) - x^2 = 11

10x - 10 - x^2 = 11

-x^2 + 10x -10 = 11

-x^2 + 10x -21 = 0

x^2 - 10x + 21 = 0

(x - 7)(x - 3) = 0

x = 7, y = 30

x = 3, y = 10

Answer Link

Otras preguntas

What is the slope of (2,3) , (6,7)

The distance of a wave crest from its resting. position is its. out of A. Wavelength B. Amplitude C. Height

There is a turtle race. The race will last 2 minutes. I have to find the distance from the start each turtle will be at the end of the race. Speed (in inches pe

Use the order of operations and the digits 2,4,6 and 8 to create an expression with a value of 2

What is the meaning of Pangaea

What is 60 divided by 100 and why? ( I got 0.6 but I'm not sure ) plz hurry

y varies directly as x. if x=5 when y=12 find x when y=30

What are the 4 main products for southeast

At a store , 24 bottles of water and 6 bags of chips costs $23.40. Five bottles of water and two bags of chips cost $6.60. What is the cost of a single bottle o

If the angles of a triangle are in ratio 2:3:7 find the measure of all the angles of the triangle