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 ( 76+ )
Otras preguntas
How do u solve this problem
What is the sum of the first 200 positive even integers?
Why was bread so important to France
Ten more than seven times a number is 35 what is the algebraic equation
Why was the city of vicksburg importance during the civil war?
which method of genetic recombination is Illustrated in the diagram A. independent assortmentB. fertilizationC. crossing overD. sexual reproduction
In a drought streams and rivers dry up first. True or false
If f(x) and f-1(x) are inverse functions of each other and f(x)=2x+5, what is f-1(8)?
What common household chemical is produced from the haber process?
Lucy receives 28 dollars a night for babysitting. She also had 135 dollars in savings before she started babysitting. If she currently has 275 dollars, write an
