SOLUTION: 3.40 for 3 doughnuts and 2 coffees, then 3.60 for 2 doughnuts and 3 coffees. What is the bill for 1 doughnut and 1 coffee?

Question 142694: 3.40 for 3 doughnuts and 2 coffees, then 3.60 for 2 doughnuts and 3 coffees. What is the bill for 1 doughnut and 1 coffee?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
3.40 for 3 doughnuts and 2 coffees, then 3.60 for 2 doughnuts and 3 coffees. What is the bill for 1 doughnut and 1 coffee?
------------
EQUATIONS:
3d + 2c = 3.40
2d + 3c = 3.60
-----------------
Use any method to solve the system to get:
d = 0.6 or 60 cents
c = 0.8 or 80 cents
========================
Cheers,
Stan H.
RELATED QUESTIONS
Problem: The students from algebra class go for coffee together every day at 9:00 AM. On (answered by mangopeeler07)

Hello, Can someone please help me with this math I am having a hard time with it. it... (answered by stanbon)

Systems of Equations and Inequalities i) Problem: The students from algebra class go for (answered by stanbon)

on monday, archie paid $3.40 for three doughnuts and two coffees. On tuesday he paid... (answered by mananth)

On the first day of a two day meeting, 10 coffees and 10 doughnuts were purchased for a... (answered by ikleyn)

Write a system of two equations in two unknowns. On Monday, Archie paid $3.40 for three... (answered by Cromlix)

Hello E-Tutors:) Could someone lead me in the right direction with this college... (answered by stanbon)

Hellllllpppppppp On Monday, Archie paid $2.54 for three doughnuts and two coffees. On... (answered by Paul)

on monday, revlien paid 66 pesos for 3 doughnuts and 2 cups of coffee. on tuesday, she... (answered by ikleyn,math_tutor2020)