Imgabbymongan Imgabbymongan
  • 24-02-2020
  • Mathematics
contestada

Find the ordered pair of x=5y-7 and x+5y=8

Respuesta :

altavistard
altavistard altavistard
  • 24-02-2020

Answer:

The desired ordered pair is (1/2, 3/2).

Step-by-step explanation:

Let's use the substitution method here to determine either x or y first:

x = 5y - 7 (given).  Then 5y - 7 can be substituted for x in x + 5y = 8:

5y - 7 + 5y = 8.

Combining like terms, we get 10y = 15, so that y = 3/2.

Find x by substituting 3/2 for y in x = 5y - 7:  x = 5(3/2) - 7 = 15/2 - 14/2 = 1/2

The desired ordered pair is (1/2, 3/2).

Answer Link

Otras preguntas

3.006 rounded to the nearest tenth
to select a new theme for a slideshow use the blank tile in the ribbon
8. The largest of the five so-called "civilized tribes" was the A. Seminole. B. Creek. C. Choctaw. D. Cherokee
5 sentences with the word clarify. Please Thanks
n which of the following sentences is a semicolon used correctly? A. Joe watered the garden and; the plants did not grow. B. Joe watered the garden
What is 4/5 equal to?
The sum of two numbers is 27 . One number is 2 times as large as the other. What are the numbers?
differentiate of the square root of x plus sqaure root of x plus square root of x
when economist use the term laissez-faire what economic idea are they referring to
Ribonuclease is an enzyme. It is 127 amino acids long. What is the minimum number of DNA bases needed to code for ribonuclease?