Wesley1111 Wesley1111

02-03-2017
Mathematics

contestada

Is (1,2) a solution to this system of equations? 18x+10y=19 x+15y=18

Respuesta :

14mahayonf 14mahayonf

02-03-2017

No that wouldn't be the solution because:

18x=10y=19
18*1+10*2=
18+20=38
Which isn't 19 so it cant be the answer.

And:
x+15y=18
1+15*2=
1+30=31
Which is also wrong because it doesn't = 18

Answer Link

Otras preguntas

Choose the correct word to complete the sentence below. (Its/It's) a long hike through the park to get to the lake. a. Its b. It’s

which og the following represents an equation? a. 3x+13-5 b. 3+11=14 c. x+14 d. x/5-2

Information based on opinions is valid. a. True b. False

Which of the following is an example of a decomposition reaction? a. photosynthesis b. digestion c. polymerization d. exchange of ions between two compounds

Please give a worked explanation! Thanks :)

Which organization sets monetary policy for the United States? Board of Governors Congress Federal Open Market Committee Federal Reserve Banks

The US Dietary Guidelines are published every ten years. a. True b. False

Which of the following is a declarative sentence? A. John and Mary are dating! B. Tell me about John and Mary. C. Where is John taking Mary on their date? D. Jo

Location plays a role in wetland type, but is not the sole determining factor. true or false

A mineral that has _______ can be split fairly easily along planes with weak atomic attraction.