adziam21
adziam21
06-10-2016
Mathematics
contestada
Solve the system of equations -2x+y=5 x-3y=-30
Respuesta :
jacquiblanco99
jacquiblanco99
06-10-2016
-2x+y=5
x-3y=-30 so you can multiply the bottom equation by 2 you'll get 2x-6y=-60
-2x+y=5
2x-6y=-60 And subtract the equations. You'll get -5y=-55 y=11. Plug it in to one of the original equations. -2x+(11)=5
-2x=-6 so x=3
y=11 and x=3
Answer Link
VER TODAS LAS RESPUESTAS ( 94+ )
Otras preguntas
a car sales for 25,000 if the rate of depreciation is 15% what is the value of the car after 7 years round to the nearest hundred
the sum of to numbers is 15 and their quotient is 2. PLEASE HELP MEEE
Find the sum of (-4+ i) and (10 - 51). -3+ 51 -3-51 06-41 6-61 DONE
Kathleen is a member of the human resource department at Jade Corp. Setting a goal to enhance the firm's strategy, Kathleen works to attain it by understanding
Suppose that y varies inversely with x. Use the information to find k, and then choose the equation of variation. x = 2.5 when y = 100.
Find the range of the following set of data.23,50, 49, 48, 49, 32, 37, 40, 41, 42, 41, 41, 43
Can someone please help me with this math question PLEASE HELP THIS IS URGENT
A man received 7 per cent interest on a loan of $800 for one year. How much interest did he receive? A.) $56 B.) $560 C.) $780 D.) $870 D.) None of these
Find the distance from Point A (4,2) to Point B (-3,2).
Which of the following describes The local softball team won the championship "against all odds". A. prepositional B. participial C. gerund D. infinitive
