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 ( 91+ )
Otras preguntas
X+2y=7 3x-2y=-3 solving systems by substitution
What environmental issue is thought responsible for the destruction of 30% of Germany's rainforests? A) Tree Rot B) Acid Rain C) Boll Weevils D) Deforestation
Write the expression for phrase: 4 more than a number
The length of a rectangle is represented by 2l+2w. Express the perimeter as the product of two factors.
How does writing a function rule as an equation help you solve problems with more than one situation or parameter?
the clubs indoor pool is a rectangular shape.Marco is laying tile around the pool to create a walkway whatbis the area of the pool
I am writing a few paragraphs on my ideal school in Spanish GCSE? I need some inspiration and ideas on my ideal school, it is all about the conditional tense ma
Explain how to find the absolute value of an interger
What did some European imperialists use to justify imperialism?
Earth’s rotation causes surface currents in the Northern Hemisphere to A) curve clockwise B) move in straight lines. C) curve counterclockwise. D) move in di
