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3 years ago

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Cookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost

you $2.80.Write an equation to determine the normal price of each cookie with (c).
I REALLY NEED HELP PLEASE

1 answer:

lina2011 [118]3 years ago

6 0

today's price is c - 0.75

7(c - 0.75) = 2.8

c - 0.75 = 0.4

c = 1.15

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Step-by-step explanation:

Step 1: Add the numbers.

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This means addition. Also, since our denominators are not the same value, we have to find the LCM (Least Common Denominator): What do 2 and 4 have in common that they can divide themselves by? 4. We know this because 2 divided by 4 is 2, and 4 divided by 4 is 1, so they can both divide themselves by 4.

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