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ValentinkaMS [17]
3 years ago
15

Which logaritnmic equation equivalent to the exponential equation below 5c=125

Mathematics
1 answer:
nataly862011 [7]3 years ago
3 0
I assume you meant to write 5^c = 125. The equivalent logarithmic expression for this would be ㏒₅125=c.
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ExtremeBDS [4]

Answer:

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Step-by-step explanation:

a. What equation can you use to find the cost c of a sandwich

Let c be the cost of a whole ham sandwich. Now, the total bill = cost of drinks + cost of half a ham sandwich  + cost of a whole ham sandwich.

total bill = $ 12.54, cost of drinks = $ 1.65, cost of half a ham sandwich = c/2 and cost of a whole ham sandwich = c. So,

$12.54 = $ 1.65 + c/2 + c

b. What is the value of c

We then solve for c in the equation $12.54 = $ 1.65 + c/2 + c

collecting like terms, we have

$12.54 - $ 1.65 = c/2 + c

$ 10.89 = 3c/2

multiplying through by 2, we have

$ 10.89 × 2 = 3c

$ 21.78 = 3c

dividing through by 3, we have

c = $ 21.78/3

= $ 7.26

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2 years ago
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lys-0071 [83]

Answer:

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Step-by-step explanation:

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Answer:

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