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scZoUnD [109]
3 years ago
11

Solve and type in a different form by using the given theorems of logarithms. log10 (M/N) =

Mathematics
1 answer:
dedylja [7]3 years ago
4 0

Answer:

log₁₀ M - log₁₀ N

Step-by-step explanation:

I want to believe that 10 is the base of the logarithm.

So, we shall have

Log₁₀ M/N =

Using the law of logarithm that says:

Log (AB) = Log A + Log B and

log (A/B) = Log A - log B.

∴Log₁₀ M/N =  Log₁₀ M - Log₁₀ N

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18.Lupe and her friends spent $20 on snack mix and water. They bought x bags of snack mix and y bottles of water. They bought a
Readme [11.4K]

Answer:

bags of snack = x = 6

bottles of water = y = 5

Step-by-step explanation:

The system of equations can be used to determine how many of each item they bought.

20.00=2.50x+1.00y

11=x+y

how many bags of snack mix did they buy?

Let

bags of snack = x

bottles of water = y

20.00 = 2.50x + 1.00y (1)

11 = x + y (2)

From (2)

x = 11 - y

Substitute x = 11 - y into (1)

20.00 = 2.50x + 1.00y

20.00 = 2.50(11 - y) + 1.00y

20.00 = 27.5 - 2.50y + 1.00y

20.00 - 27.5 = -2.50y + 1.00y

-7.5 = -1.5y

y = -7.5/-1.5

y = 5

Substitute y = 5 into (2)

11 = x + y

11 = x + 5

11 - 5 = x

x = 6

bags of snack = x = 6

bottles of water = y = 5

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3 years ago
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Answer:

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10. 2/3

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3 years ago
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