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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:

y = -6

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

0.75y−1.5y+0.5=5

0.75y+−1.5y+0.5=5

(0.75y+−1.5y)+(0.5)=5(Combine Like Terms)

−0.75y+0.5=5

−0.75y+0.5=5

Step 2: Subtract 0.5 from both sides.

−0.75y+0.5−0.5=5−0.5

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Step 3: Divide both sides by -0.75.

Hope this helps!

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