tumblrUnicorn tumblrUnicorn

31-05-2016
Mathematics

contestada

What is the value of x and y when 84=4x+2y and 126=3x+5y?

Respuesta :

zainahayath zainahayath

31-05-2016

84-2y=4x
21-y=x

126=3(21-y)+5y
126=61+2y
65=2y
37.5=y

Answer Link

Otras preguntas

The average atomic mass of a sample of an element X is 16.2 u. What are the percentages of isotopes 10⁸X and 11⁸X in the sample? A. 60%, 40% B. 70%, 30% C. 80%,

A submersible pump is put underwater at the bottom of a well. What minimum gauge pressure must the pump generate to pump water 56.6 m from the water level to th

Wilmer is interested in the effect of sleep deprivation on the number of 20 college 6 hours 8 hours ANOVA. What does Wilmer know?a) The type of analysis he need

If the US government ran a larger budget deficit, how would that affect the market for loanable funds? How would that affect net capital outflow? How would that

Now imagine that the sign of our test particle is changed from positive to negative, but the electric potential remains the same. Which of the following stateme

What is the function of Phosphotriose isomerase in the prep phase of cellular respiration?

Ten (10) teams are playing matches against each other. Assume that each team will play every other team once, how many matches must take place? a) 45 b) 55 c) 9

40x objective lens on your compound light microscope to observe the unicellular organism Tetrahymena pyriformis. What is the total magnification of the sample?

Which statement best expresses the theme of "All Summer in a Day"? a) The unpredictability of weather shapes human experiences. b) The consequences of jealousy

why do grocery store sales cycles matter?