Question

John buys 8 packs of cookies at the grocery store. The cookies are on sale for 50 cents of per pack. He spends $20. Which equation can be used to find the original cost of a box of cookies, c?

8 (c + 0.50) = 20
8c - 0.50 = 20
8 (c - 0.50) = 20
8 - 0.50c = 20​

Answer 1

Answer: 8 (c + 0.50) = 20

Step-by-step explanation: Howdy, for our first step we must solve the parenthesis multiply C by 8 then multiply 0.50 by 8, this will get you “8c+4=20, for our second step we must subtract 4 on both sides now you will have 8c=16. All you will have to do from here is divide both sides by 8 now you get “c=2.5$, however this is the discounted price so we must add 0.5$ to remove the discounted price, Finally getting you 2.50$, Now let’s write this correctly c=2.50$ or “The original price for a box of cookies is $2.50$ If you have any questions feel free to ask. Steps:

8 (c + 0.50) = 20

8c+4=20

8c=16

C=2+0.50

C= 2.50$