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2 years ago

There are 8 sophomores on the academic team. At the last competition, they each took the math test. Their scores were 82%,

Mathematics

2 answers:

Fantom [35]2 years ago

8 0

Answer:

A. 79%

Step-by-step explanation:

Add all of the values and divide by the number of terms

Vikentia [17]2 years ago

4 0

Answer:

Test scores: 82%, 92%, 76%, 72%, 92%, 74%, 80%, 78%

ordered

72%, 74%, 76%, 78%, 80%, 82%, 92%, 92%.

The median math test score is 79% and option A is the correct choice.

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17 1/4 miles per hour

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2 years ago

two dice are rolled until a sum of either 5 or 7 occurs. estimate the probability that a 5 occurs first g

Ierofanga [76]

Answer:

The correct answer is " $\frac{2}{5}$ ". A further solution is provided below.

Step-by-step explanation:

According to the question,

The probability of getting a 5 will be:

= $\frac{4}{36}$

= $\frac{1}{9}$

The probability of getting a 7 will be:

= $\frac{6}{36}$

= $\frac{1}{6}$

The probability of not a 5 nor a 7 will be:

= $1-[\frac{4}{36} +\frac{4}{36} ]$

= $\frac{26}{36}$

= $\frac{13}{18}$

Now,

For roll of 2 dice,

⇒ $P=\frac{1}{9} +{\frac{1}{9}\times (\frac{13}{18} ) }+{(\frac{1}{9} )\times (\frac{13}{18} )^2}+{\frac{1}{9}\times (\frac{13}{18} )^3 }+...$

$=\frac{1}{9} [1+\frac{13}{18} +\frac{13^2}{18^2} +\frac{13^3}{18^3} +...]$

$=\frac{1}{9} [\frac{1}{1-\frac{13}{18} } ]$

$=\frac{1}{9} [{\frac{1}{\frac{5}{8} } ]$

$=\frac{2}{5}$

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2 years ago

Dana spent $495 on 15 hours of obedience training for her dog Rusty. Felipe wants to

swat32

Answer:

9 hours

Step-by-step explanation:

$495 divided by 15 hours = $33 - this is how much the trainer charges per hour.

$297 divided by $33 per hour = 9 hours of training

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2 years ago

Which expression is equivalent to 2.2 − 0.5(0.6x − 1.8) ?

VARVARA [1.3K]

Answer:

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hope this helps

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2 years ago