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solniwko [45]
3 years ago
12

Select each correct answer.

Mathematics
1 answer:
makkiz [27]3 years ago
3 0

Answer:

1 lap in 8/10 (4/5) of a minute

Answer is B, 8/10 minute! or (6a times 5)+(6a times d)

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

Step-by-step explanation:

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What is the percent of the discount for a $60 item that sells for $45?
goblinko [34]

Answer:

75%

Step-by-step explanation:

45/60 x X/100

45x100

4500/60

75%

4 0
3 years ago
Jenny wants to earn $1,300 by the end of the summer. How much more will she need to meet her goal?
kompoz [17]
Jenny needs $1,172.95. To solve this you need to subtract the amount Jenny already has from her goal. Then you should get your answer.

3 0
2 years ago
Read 2 more answers
Brianna has a 50$ online gift certificate from a book store. The cost of each book is $9. There is also a shipping charge of 5$
ZanzabumX [31]

Answer:

5 books

Step-by-step explanation:

I just went through the nines multiplication table until I got to 9 * 5 which equals 45, and then since it charges $5 for the shipping fee, $45 + $5 = $50 so 5 books would be the amount she can buy

6 0
2 years ago
Read 2 more answers
The scores on a statistics test had a mean of 81 and a standard deviation of 9. One student was absent on the test day, and his
Rama09 [41]

Using the definitions of the mean and of the standard deviation of a data-set, we have that:

  • The mean would increase.
  • The standard deviation would remain constant.

<h3>What are the mean and the standard deviation of a data-set?</h3>

  • The mean of a data-set is given by the <u>sum of all values in the data-set, divided by the number of values</u>.
  • The standard deviation of a data-set is given by the <u>square root of the sum of the differences squared between each observation and the mean, divided by the number of values</u>.

When the measure of 84 is added to the data-set, we have that:

  • A measure greater than the mean is added, hence the mean would increase.
  • The difference squared between 84 and the mean of 81 is of 9, which is the same as the standard deviation, which would remain constant.

More can be learned about the mean and the standard deviation of a data-set at brainly.com/question/26941429

#SPJ1

8 0
1 year ago
Ayo, i give brainliest answer if you give it back check!​
mr_godi [17]

Answer:

can i have branliest and heart with 5 stars i really need it right now.

Step-by-step explanation:

7 0
2 years ago
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