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bazaltina [42]
2 years ago
7

Kolby decided he wanted to go to the amusement park. The amusement park charges $8.00 for entry and $1.40 for each ride.

Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
8 0

Answer:

Part A:

1.40x+8.00=C

Part B:

1.40x+8=26

        -8   -8

1.40x=18

/1.40    /1.40

x=11 total rides

Step-by-step explanation:

An expression to represent this would be 1.40x+8.00=C (C is total cost).

If you had $26.00 you would first spend $8.00 on the entry leaving you with $18.00. Then you would divide the $18 by $1.40 for each ride to get 12.8... It doesn't make sense to go on a fraction of a ride so you just round down to 11 rides

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Mary is rolling a standard six-sided die and spinning on a spinner with the number 1-8.
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Answer:

a) Dice and spinner are different objects, with no relation between themselves, and thus her dice rolls and spinning outcomes are independent.

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A probability is the number of desired outcomes divided by the number of total outcomes.

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One side out of 8 on the spinner. So

P(B) = \frac{1}{8}

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P(A \cap B) = P(A)P(B) = \frac{1}{6} \times \frac{1}{8} = \frac{1}{48}

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Since the events are independent, we find each separate probability and multiply them.

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P(A) = \frac{3}{6} = \frac{1}{2}

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P(B) = \frac{2}{8} = \frac{1}{4}

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