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Dmitry_Shevchenko [17]
3 years ago
15

There are20 keys on a keychain. One of the keys starts a car. If a key is randomly chosen what is the probability that it starts

the car
A)5% B)25% C)20% D)15%
Mathematics
1 answer:
pogonyaev3 years ago
7 0
The answer is 5%........


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Bob bought the 24 fish for $51.36. How much did each fish cost him? Show your calculation.
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Answer:

2.14

Step-by-step explanation:

2.14x24=51.36

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What expression is equivalent to 7sqrtx^2/5sqrty^3​
V125BC [204]

Answer:

Step-by-step explanation:

Sounds as tho' possible answer choices were listed.  Please, share them without being asked to do so.  Thank you.

 7√(x²)          7√(x²)

------------- = ----------------------

  5 √(y³)        5√( y^(3/2) )

We want to get the fractional exponent out of the denominator.  To do this, multiply both numerator and denominator by y^(1/2):

 7√(x²)          7√(x²)                y^(1/2)      7√(x²)·y^(1/2)       7x√y

------------- = --------------------- * ----------- = --------------------- = ----------

  5 √(y³)        5√( y^(3/2) )       y^(1/2)        5 √(y²)                  5y

This is the final answer.  We have succeeded in removing radicals / fractional exponents from the denominator.

3 0
3 years ago
Someone please help.
olga55 [171]

Answer:


Step-by-step explanation:

It's solved by grafic method

6 0
3 years ago
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