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

Two random samples were drawn from two employers to obtain information about hourly wages. Use the following information and the PopMeanDiff template to determi

The Japanese Yen corresponds to the American Dollar. If the exchange rate is 150 Yen for 1 Dollar, then a Japanese car sold in America for $10,000 will bring in

Which expression is equivalent to -12 (3x-3/4)? a. -36x-8 b. -36x+8 c. -36x-9 d. -36 x+9

Matt and Meg Comer are married and file a joint tax return. They do not have any children. Matt works as a history professor at a local university and earns a s

What role does Quinn play in his family?, Does he seem to enjoy that role, or is there something else being portrayed to the audience? Explain your answer.

what is the solution to the systems of equations.2x+5y=3y=x+2

Chelsea takes the bus to school, but she walks home. The bus travels to the school at an average speed of 45 miles per hour. While going home from school, Chels

One meter is equal to 10 9 nanometers. How long in meters is 670 nanometers? 6.70 × 10 –7 m 6.70 × 10 –9 m 6.70 × 10 9 m 6.70 × 10 –11 m

1. Evaluate (101.5)? - (100.5)

which statement most accurately reflects sexual behavior from teens and young adults