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pychu [463]
2 years ago
11

3. Solve 2log4y - log4 (5y - 12) = 1/2​

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
4 0

Answer:

y =  4  or y = 6

Step-by-step explanation:

2log4y - log4 (5y - 12) = 1/2

​2log_4(y) - log_4(5y-12) = log_4(2)           apply law of logarithms

log_4(y^2) + log_4(1/(5y-12)) = log_4(/2)    apply law of logarithms

log_4(y^2/(5y-12)) = log_4(2)                     remove logarithm

y^2/(5y-12) = 2                                            cross multiply

y^2 = 10y-24                                                  rearrange and factor

y^2 - 10y + 24 = 0

(y-4)(y-6) = 0

y= 4 or y=6

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see below

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8 0
2 years ago
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aleksandrvk [35]

The answer is 5 cakes.

EXPLANATION

To solve this, you work out that 1/4 of an hour is 15 mins 2/5 of an hour is 24 mins and that 3 1/4 hours is 195 mins.

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2 years ago
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Alika [10]

Let

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the total cost in dollars of 6 ounces of coconut oil is a=\$3

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GenaCL600 [577]

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alex41 [277]

Answer:

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Step-by-step explanation:

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