04-06-2018
Mathematics

contestada

slove the system of equations 3x-7y=5 and 9y=5x+5

Respuesta :

jinc0930 jinc0930

04-06-2018

3x-7y=5

9y=5x+5
-5x+9y=5

3x-7y=-5x+9y
8x=16y
x=16y/8
x=2y

3(2y)-7y=5
-1y=5
y=-5

-5(9)=5x+5
-45-5=5x
x=-10

Answer Link

Otras preguntas

The prefix used for 1000 times the base unit is _____...? a. milli b. centi c. deci d. kilo

How does the amount, or magnitude, of charge on an object affect its attraction or repulsion of another object?

Driving excessively fast or slow, showing off while driving, or driving aggressively might indicate a driver ___________________.

The musical instrument referred to as the "King of Instruments" is the A. human voice. B. organ. C. tuba. D. violin.

As a mountain climber is hikes up Mount Rainier, it becomes harder for him to breath the higher he goes. Why does this happen? How does low air pressure affect

help please! match the sequence (term) with the correct type of sequence (definition). term definition 2, 4, 6, 8, ... a. arithmetic, common difference is -4 28

A teacher polled her kindergarten classroom? Color Number of Students Red 5 Blue 7 Green 3 Y

According to the text, how long should you keep utility bills? a. only until the next bill arrives. b. one year. c. three years. d. six months.

What are homologous structures in different species evidence of? A.) a common ancestor B.) natural selection against a trait C.) inheritance of acquired charac

(PLS HELP?) Quadrilateral WXYZ is a rectangle. The perimeter of triangle XYZ=24, XY+YZ=5x-1, and XZ=13-x. Find the length of WY.