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2 years ago

Kenneth and 3 friends visited the bowling alley.

Mathematics

1 answer:

yKpoI14uk [10]2 years ago

5 0

Answer:

The shoe rental is a one-time expense for the day. So that would be 3 * 2.5

The variable is the number of games. As the question is written, I'm assuming you want the total # of games. So, the formula for that part would be 5.3x

Putting it together:

(3 * 2.5) + 5.3x = 55.2

Step-by-step explanation:

i asked my pre-algebra teacher and she helped me with the question cuz she wants me to get good grades

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The table gives the relative frequencies of recipes that contains sugar and salt, contain at least one of those ingredients, or

tigry1 [53]

Answer-

The probability that a randomly selected recipe does not contain sugar, given that it contains salt is 22.4%

Solution-

The given table in the link shows the relative frequencies of recipes that contains sugar and salt, or contains at least one of those ingredients, or contains neither of those ingredients.

We have to find the conditional probability that the recipe doesn't contain sugar, given that it contains salt.

We know that, the conditional probability of occurrence of A given that B occurs is,

$P(A|B)=\frac{P(A\ and\ B)}{P(B)} =\frac{P(A\bigcap B)}{P(B)}$

$P(\text{Doesn't contain sugar}\ |\ \text{Contains salt})=\frac{P(\text{Doesn't contain sugar}\ and\ \text{Contains salt})}{P(\text{Contains salt})}$

$P(\text{Doesn't contain sugar}\ and\ \text{Contains salt})=\frac{0.15}{1} =0.15\\P(\text{Contains salt})=\frac{0.67}{1}=0.67$

Putting these values,

$P(\text{Doesn't contain sugar}\ |\ \text{Contains salt})=\frac{0.15}{0.67} =0.224=22.4\%$

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Paraphin [41]

Answer:

Step-by-step explanation:

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RoseWind [281]

Answer:

Step-by-step explanation:

If there needs to be 4 teachers per 21 students, you would divide the total amount of students by 21 and multiply that answer by 4. SO...:

84 ÷ 21 = 4 groups of 21 students.

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*** Answer***

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