kyrarix kyrarix
  • 03-12-2018
  • Mathematics
contestada

Solve the system of linear equations. What is the value of y?



9x−6y=15

6x+21y=60

Respuesta :

goldeneagle1
goldeneagle1 goldeneagle1
  • 03-12-2018

Answer:

y = 5

y = 2.2

Step-by-step explanation:

For the first one:

9x = 9 x1 = 9

9 - 6 = 3

3y = 15

15 ÷ 3 = 5

y = 5

For the second one:

6x = 6 x 1 = 6

6 + 21 = 27

27y = 60

60 ÷ 27 ~ 2.2

y = 2.2

Answer Link

Otras preguntas

conversation between Hitler and gandhi
The plans for a shed call for a rectangular floor with a perimeter of 204 ft. The length is two times the width. Find the length and width.
The process by which rocks are broken down into smaller fragments by the atmosphere and other factors in the environment is called?
Al washed a car in 6 minutes. Fred washes the same car in 8 min. How long dies it take Al and Fred to wash the car together?
How many eighths are there in 4 1/4
what time is 9 hours and 30 minutes before. 4:25
What is the lateral area of the rectangular prism with a base length of 17 m, a base width of 7 m, and a height of 5 m?
A history quiz consists of five true-false questions. If you guess on each question, then the probability of answering all five questions correctly is approxima
Buck drove 220 miles in 5 hours. What was his average rate of speed?
The number of waves that pass a particular point in a unit of time is called the __________ of the waves. (a) rarefaction (b) compression (c) amplitude (d) freq