radomes.openskiesproject.org
shelly3344
shelly3344 shelly3344
  • 23-01-2017
  • Mathematics
Answered

solve the system of equations by substitution.



3x + 4y = 31


2x - 4y= -6


A(4, 5)
B(5, 4)
C(-5, 12.5)
D(5, -4)

Verified Answer :

tristanluedke
tristanluedke tristanluedke
  • 23-01-2017

The correct answer is B. (5,4).
If you combine the like terms of both equations you get 5x=25
Divide both sides by 5 to isolate the variable.
x=5, plug 5 into the top equation.
3(5)+4y=31
15+4y=31
4y=16
y=4
x=5  y=4

Answer Link

Related Questions

PLEASEHELP Why is oxygen important for all body cells AIt is involved in sugar production BIt reduces the amount of urea in blood CIt increases the formation of
how many grams in an ounce
Which of the following accurately describes the current trends in income distribution throughout the world a The United States has more income equality than alm
20 Points What values are demonstrated when choosing to go on a holiday
An individual is infected with a pathogen that absorbs nutrients from its environment In which category does this pathogen belong A bacteria B fungi C protozoa
is the act of breaking into a computer to steal information Identity theft Safecracking Hacking Lifting
What is 1983 and 993 rounded to the nearest one
Which of the following is not an environmental factor responsible for increases in emergentresurgent diseases
a stone is dropped from the top of 50 m high tower simultaneously another stone is thrown upward with a speed of 20 ms calculate the time at which both the ston
Which of the following is the minimum level of structure needed to perform the function of waste removal a body system b tissue c cell d organ C Which two syste