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 ( 92+ )
Otras preguntas
How do I set up this problem?
Marcy has $150 to buy packages of hot dogs,d, and hamburgers,b, for her booth at the carnival. At her grocery store she found packages of hot dogs cost $6 and p
How do I do this? Method as well..
Convert to standard form: -5/2 (x-5) = y+8
what is the meaning of clear position of purpose
Please help me. Lincoln School is having a fundraising contest. Each student is to design a school sticker. The designs are to be made to fit a rectangle that i
Write a short fairytale .
how did Reconstruction help African Americans? How did it fail them?
If claudia car has an average fuel consumption of 30 miles per gallon and she used 9.5 gallons how far did she drive?
Read the clauses below. Which sentence best combines the clauses to show the relationship between ideas? Not everyone thinks they have rhythm / dancing can be
