04-04-2014
Mathematics

contestada

If 2x+z=2y and 2x+2y+z=20 what is the value of y?

Respuesta :

Аноним Аноним

05-04-2014

[tex]2x+z=2y\to2x=2y-z\\\\substitute\ to\ 2x+2y+z=20:\\\\(2y-z)+2y+z=20\\2y-z+2y+z=20\\4y=20\ \ \ \ /:4\\y=5\to answer[/tex]

Answer Link

Otras preguntas

At an Elizabethan playhouse, who were the groundlings? o those people who sat in the galleries o those people who stood in the open yard O those people who prep

points freeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

What is the value of 1 / 5 (6 + 8.5)?

The Indus Valley can be found in the country of ___. HELP QUICK PLEASE choices Bangladesh Pakistan Nepal India

Please help with 4 no files or links please

Madeline is measuring wavelengths. Look at her notes above. What mistakes has she made in her measurement? What should she do differently to obtain the correct

What does the series represent to the bike owner answer all plz :)

Small Sample: During an economic downturn, 11 companies were sampled and asked whether they were planning to increase their workforce. Only 2 of the 11 companie

Help!!! For chemistry

somrone help with my geometry pls? Its too many questions for me to complete.