danasonggg1
danasonggg1
24-05-2017
Mathematics
contestada
#7 please! Thanks!!❤️
Respuesta :
PHDFlopper
PHDFlopper
24-05-2017
Set up a system of equations:
x=number of cars washed
y=number of trucks washed
x+y=122
3x+5y=510
Solve using elimination:
Multiply the first equation by -3:
-3x-3y=-366
3x+5y=510
Add the two equations together:
2y=144
y=72
The answer is 72 trucks
Answer Link
Аноним
Аноним
24-05-2017
72 trucks is the answer to the problem.
Answer Link
VER TODAS LAS RESPUESTAS ( 26+ )
Otras preguntas
What are some similarities between soccer and lacrosse?
Which of the following statements on the innovations created by ancient cultures is true? A. The Incas focused on innovations in transportation, while the Aztec
The lowlands west of Australia's eastern mountain range are drained by the Murray-Darling River system, with its main headwaters in the Great _______ Basin
How was New York City am important area of change in the 1920's?
this civilization began around 2500 b.c. and was the largest of the worlds first civilization
f(x) =2x-5 and g(x) =x+52 find f(g(x)
what is speed that does not vary called? Motion, Distance, Displacement, Instantaneous speed, or constant speed?
Give an example of where you use pressure in your daily life?
In what century was the South Pole ultimately mapped? A. 16th B. 18th C. 19th D. 21st
suppose two different fractions with the same denominators are both less than 1 Can their sum equal 1? can their sum be greater than 1
