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sertanlavr [38]
3 years ago
10

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!
1) Write an equation to determine the normal price of each cookie (c)

2) Find the normal price of each cookie.
Mathematics
1 answer:
Sophie [7]3 years ago
3 0
Equation : c = (2.80 / 7) + 0.75

Normal price of each cookie:
c = (2.80 / 7) + 0.75
c = 0.4 + 0.75
c = $1.15
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Answer:

(in attachment)

Step-by-step explanation:

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6 0
3 years ago
The frequency of the musical note E3 is about 164.81 Hz.
laiz [17]
A perfect fifth above a note has a frequency ratio of 3 to 2.
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6 0
4 years ago
Read 2 more answers
-4(5+n) = -12 need help​
user100 [1]

First, simplify out the brackets:

-20 - 4n = -12

Then, combine like terms by moving the -20 to the other side

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Divide by -4 on both sides to isolate the n

n = 8/-4

n = -2

7 0
4 years ago
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