02-02-2018
Mathematics

contestada

The sum of the equations -8x - 2y = 54 and 4x + 10y = 10 is an equation in one variable.

Respuesta :

wolf1728 wolf1728

02-02-2018

Multiplying first equation by .5:
A) -4x -y = 27 then adding equation B)
B) 4x + 10y = 10
9y = 37
y = 4.1111111111

x =
-4x - 4.1111111111 = 27
-4x = 31.1111111111
x = -7.7777777778

Answer Link

Otras preguntas

In the nitrogen cycle , onca a consumer gains nitrogen nutrients from animals or plants , it recylces these nutrients back to the earth by

Calculate the atomic mass of sulfur if the four common isotopes of sulfur have masses of 31.972 amu (95.00 % abundance), 32.971 amu (0.76 %), 33.967 amu (4.22 %

A 356 cast aluminum test bar is tested in tension. The initial gage length as marked on the sample is 50mm and the initial diameter is 13.1mm. After fracture, t

what Word do threw notes spell

I NEED HELP PLEASE!! Which equation applies the associative property of multiplication? A. (-1/2•4/7)+(-1/2•2/3)= -1/2•(4/7+2/3 B. -6/5-(5/3-1/4)=(6/5-5/3)-1

You have a coupon for 10% off a lamp that cost $60 what is the discount price of the lamp?

Help due tomorrow thank you

A=2πr+rh solve for r

If your mother takes you to your grandparents house for dinner. She drives 60 minutes at a constant speed of 40 miles per hour. She reaches the highway, quickly

Write C code to define a structure called date that has three fields day, month, year, all of which are ints.