alarm
Ask a question for free
Other
puppy

The math teachers decided to throw a party. One teacher bought 7 cookies and 2 ice cream bars for $10.95. Another teacher bought 4 cookies and 3 ice cream bars for $10.25 . How to find out how muchdid one cookie and one ice cream bar cost, individually?‚Äč

answers: 1
Register to add an answer
Answer:

0.95, 2.15

cookie-x

ice bar-y

7x+2y=10.95 (*3)

4x+3y=10.25 (*2)

21x+6y=32.85

8x+6y=20.5

21x-8x=32.85-20.5=12.35

13x=12.35

x=0.95

2y=10.95-7*0.95=4.3

y=2.15

other answer is correct. i had used the radius of the radius somehow. awebsite:

.95

478
Tygrawield
For answers need to register.
Contacts
mail@expertinstudy.com
Feedback
Expert in study
About us
For new users
For new experts
Terms and Conditions