03-04-2017
Mathematics

contestada

2x+5y=60
2x-5y=-20

Please show work!

Respuesta :

Goalinetsky Goalinetsky

03-04-2017

(2x+5y=60)
- (2x-5y=-20)
-------------------
10y=80
y=8

2x+5(8)=60
2x+40=60
2x=20
x=10

Answer Link

Otras preguntas

How does Shakespeare makes certain lines within his plays seem more important than others

how do you determine the density of a substance or object?

how are southern appalachian (u.s.a.) and southwestern caucasus (russia) forests similar?

How many decameters are there in 4.5 kilometers?

13 over 3 simplified

The area of a triangle whose height is 1 more than 6 times its base is 13 square feet. If the base of the triangle is x feet, which equation models this situati

How many languages and dialects are there in india?

The method of grouping organisms into categories that represent lines of evolutionary descent called

Which statement best describes the political issues between President Johnson and the Radical Republicans? The Radical Republicans fought with President Johnso

Which two fundamental forces act within the atomic nucleus?