heavrilbekayra heavrilbekayra

04-05-2016
Mathematics

contestada

Solve the system by the elimination method. Check your work. 3a + 5b - 7 = 0 a - 2b - 4 = 0

Respuesta :

meerkat18 meerkat18

11-05-2016

3a + 5b - 7 = 0
0a - 2b - 4 = 0

-2b = 4 - 0a
b = (4 - 0a)/ -2
b = -2

3a + 5b - 7 = 0
3a + 5(-2) - 7 = 0
3a - 10 - 7 = 0
3a - 17 = 0
3a = 17
a = 17/3 or 5 2/3

Answer Link

Otras preguntas

Help me please and thank you:3

k = 3. What is the slope of the line that passes through the points (2,-5) and (-4, -1)? Give your answer as a fraction in simplest form.

ASAPPP I NEED THE ANSWER The graph of a function is given. Is the function linear or nonlinear? Select from the drop-down menus to correctly complete this state

This bc it’s really really really hard and I can’t figure it out

Which nfl franchise hired kwesi adofo-mensah to replace longtime general manager rick spielman?.

What are you being asked to solve in this problem? Cathy drove of a mile each day to work. What is the total number of miles Cathy drove to work after 5 days? h

Find the area of triangle whose base is 6 cm and height is 8 cm

please help me i don’t understand it

Fill in the missing number. 75% of what = 6

Find the volume of the solid formed by rotating the region bounded by the given curves about the indicated axis. Y = 1x, y = 1, y = 5, x = 0; about the y-axis.