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 ( 24+ )
Otras preguntas
Q es la historia de hondura
The first known public water system was in ________ using boiling and___________ ______________. a) Rome, sand filtration b) Athens, chemical treatment c) Babyl
Can you have nested ifs with else conditions for each block?
18ones plus 17 tens equals
Informal assessment process last throughout the relationship with the customer but does not start until his/her first appt. with a case managera) trueb) false
what is a healthy BMI for adults 65+?
suppose a gymnast of mass m climbs a rope. what is the magnitude of the tension t in the rope if she climbs at a constant speed? use g for magnitude of free-fal
The following statement illustrates the objectives of the IBEW: To ________ hours of daily labor. a) Increase b) Standardize c) Decrease d) Monitor
Canada has 12 million workers each of which is capable of producing either 5 cars or 50 bushels of wheat in a year. The opportunity cost of producing a car in C
What does a Day/Age theorist believe about the evolution of life? a) Life evolved over billions of years b) Life evolved over thousands of years c) Life evolved
