Resolva através do método de adição
2x+y=13
x+3y=19
alguém me ajudaaa pleaseee​

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

a

step-by-step explanation:

$450 i think. hope this ☺

answer: 5 17/33 % (to the tenth)

step-by-step explanation:

he guessed: 34.5 pounds

actual weight is 32.7

there for he is off:

34.5 -32.7 = 1.8

32.7 is the 100%

1.8 represents %? of 32.7

therefore:

32.7   - 100%

1.8     -     x%

x= 1.8*100%/32.7% = 18*100%/327%

x=1800%/327%   = (5 165/327)%

to the tenth:

5 17/33 %