DStacy01 DStacy01
  • 02-10-2014
  • Mathematics
contestada

Three times a number plus twice another is 10, while their sum is 10, Find the numbers

Respuesta :

mariamikayla
mariamikayla mariamikayla
  • 02-10-2014
[tex]3a+2b=10 \\\\ a+b=10 \\\\ \boxed{a=10-b} \\\\ 3(10-b)+2b=10 \\\\ 30-3b+b=10 \\\\ -b=10-30 \\\\ -b=-20 \\\\ \boxed{b=20} \\\\ a=10-20 \\\\ \boxed{a=-10}[/tex]
Answer Link

Otras preguntas

which one? thanks for your help
Which shape in a population pyramid communicates that a country's population is likely declining (getting smaller)?
Carlton bought stock at $5.25 for each share. The price of the stock decreased $3.75 after one month. It then increased $1.85 and $2.25 over the next two months
Use a scale factor to find the missing side. A)10 B)12 C)15 D)16 ᴄᴀɴ sᴏᴍᴇᴏɴᴇ ᴘʟᴇᴀsᴇ ʜᴇʟᴘ ᴍᴇ.
How would you summarize historían Eric foner’s perspective on Abraham Lincoln
(Q001) __________ is the judicial philosophy that argues the Court should go beyond the words of the Constitution or a statue to consider the broader societal i
Hassock Corp. produces woven wall hangings. It takes 3 hours of direct labor to produce a single wall hanging. Hassock standard labor cost is $13 per hour. Duri
The economic and logical position of a firm in an oligopoly industry can be well understood through ___________.
What page in Fahrenheit 451 is the word “cadenced” on?
the people do education .but why the people dont get any good job .?but they do the good education.why?////