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

if the temperature was -3 degrees in the morning and 8 degrees in the afternoon the change in the temperature during that time

What is the least common multiple of 20 and 14

What did Ernest Rutherford’s gold foil experiment demonstrate about an atom? Each atom is composed of electrons and positive material. The mass of the atom is e

wright three equivalent ratiios for the given ration 10/12

The greatest temperature ranges in the region, due to the effect of continentality, are experienced in?

What can you use to measure area?

A store is having a 20% off sale. The sale price of an item with price p is p – 0.2p. What is an equivalent expression?

Bella's cell phone costs $18 per month plus 0.15 for every minute she uses the phone . last month her bill was $29.25. for how many minutes did she use her phon

Continent from which many slaves were brought to the new world

The Harappan civilization owes its development in large part to which geographical feature? A. The Andes Mountains. B.The Indus River. C. The Fertile Crescent.