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 ( 74+ )
Otras preguntas
In circle O , CD = 44, OM = 20, ON = 19 , , (The figure is not drawn to scale.) Show your work. a. Find the radius. If your answer is not an integer, express it
What would the tone of Walt Whitman's poem "I Hear America Singing" be if the people in the poem were speaking rather than singing?jovialless hopefulmore hopefu
A 10 cm3 block of paraffin (a type of wax) weighs 0. 085 N. It is carefully submerged in a container of gasoline. One cm3 of gasoline weighs 0.0069 N. a. What
What was the structure of the legislative body created by the Articles of Confederation? A. bicameral B. unicameral C. tri-cameral D. separated powers
I need help on a algebra word problem... There is a rat and a mouse. The rat is x years old. The mouse is 15 years younger than the rat... How to convert that i
Food in the stomach is broken down by powerful acids and turned into?
What is answer for x2-5x+6=0
What kind of pyramid of numbers and pyramid of biomass will be formed in a forest with 75 tigers, 5,000 deer, and 1,00,000 trees?
_____ energy powers the water cycle. Geothermal Solar Latent Electric
Which area has the most mineral resources? the Caribbean Central America South America the West Indies
