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Burka [1]
3 years ago
13

Mary has $10 in savings. she owes her parents $50. she does some chores and her parents pay her $12. she also gets $25 for her b

irthday from her grandmother. does mary have enough money to pay her parents what she owes them? if not, how many more money does she need? explain
Mathematics
1 answer:
muminat3 years ago
7 0
Let's start with what we know:
Mary needs at least $50 to pay back her parents
Currently, she has $10, $12, and $25 in her possession. Let's add those values together and see if they equal $50 or more:

10 + 12 + 25 
22 + 25 = $47

Since she only has $47, she needs $3 more to pay back her parents.
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Answer:

B. 13

Explanation:

\sf\:Given\:expression: log(\dfrac{x^2 y^3}{z} )

Logarithm rules:

\sf (i)  \ \sf log(ab) = log(a) + log(b)\\ \\ (ii) \  log(a/b) = log(a) - log(b)\\\\ (iii) \ log(a^n) = n log(a)

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\rightarrow \sf log\left(\dfrac{x^2y^3}{z}\right)

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\rightarrow \sf 2\log\left(x\right)+3\log \left(y\right)-\log \left(z\right)

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