timothy566 timothy566
  • 03-01-2017
  • Mathematics
contestada

use substitution to solve s+a=4 and 35+5a=2550

Respuesta :

bcalle
bcalle bcalle
  • 03-01-2017
35+5(4-s)=2550
35+20-5s=2550
55-5s=2550
-55 -55
-5s = 2495
s = - 499

-499 + a = 4
+499 +499
a = 503
Answer Link
olemakpadu
olemakpadu olemakpadu
  • 03-01-2017
s + a = 4   

35 + 5a = 2550

From the second equation:

35 + 5a = 2550

5a = 2550 - 35

5a = 2515

a = 2515/5

a = 503


From      s + a = 4

s + 503 =4

s = 4 - 503

s = -499

Therefore  a = 503,  s = -499 
Answer Link

Otras preguntas

Pure chlorine is an example of a(n) _____. element compound mixture solution
Write the first ten terms of a sequence whose first term is -10 and whose common difference is -2.
describe how mitosis is important for your body
how can I use distribution property to multiply a 2 digit number by a 1 digit number?
Susie has a bag with 8 hair pins, 6 pencils, 2 snacks, and 5 books. What is the ratio of books to pencils? a.6/5 b.8/6 c.5/8 d.5/6
Which of the following statements is most accurate regarding atoms?
which pair of numbers does 72 fall between
PLEASE HELP ASAP 14 PTS Locate the prepositional phrase and identify it's use. Everything in the house must be sold. Phrase: Use: David, the tall kid, is captai
Write and solve a word problem for 456. Divide by 6
Pedro walks his dog 3 times a day. How many times does pedro walk his dog in one week? Find multiples of 3 to tell how many times pedro walks his dog in 8,9, an