Ruben bought 2 large popcorn buckets and 4 small drinks for $20. Lucia bought 2 large popcorn buckets and 2 small drinks for $14. How much did the large popcorn
cost? The small drink?
Write a system of equations to model this situation where x = the cost of a large
popcorn and y= the cost of a small drink.
O x +y = 34
20 = x + 2y
Oy= 2x + 20
y = 2x + 14
2x + 4y = 20
2x+2y = 14
O x + y = 20
4x + y = 14

4$ for large 3$ for a small

Step-by-step explanation:

if you mean

then it's c. 8, -7/3

but if you mean

then it is

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.