a coffee shop sells a cup of espresso for $2.00 and a cup of cappuccino for 2.50. on friday, rachel sold 30 more cups of cappuccino than espresso, and she sold $178.50 worth of espresso and cappuccino together. how many cups of each were sold?
ALgebra word problem - Damon, Saturday, November 20, 2010 at 4:22pm
x espresso and y cappuccino
for x ----- 2 x dollars
for y ----- 2.5 y dollars
2x + 2.5 y = 178.5
y = 30 + x
2x + 2.5(30+x) = 178.5
ALgebra word problem - Jen, Saturday, November 20, 2010 at 4:24pm
Check it by plugging them back into the first equation; it works.