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Mnenie [13.5K]
2 years ago
9

This box plot shows information about the marks scored in a test.

Mathematics
1 answer:
aliina [53]2 years ago
4 0
Since 120 students gained less than 70, and 70 is the upper quartile, 120 people are in the 75% of all the students so we need to find the total number of students.
we need to multiply 0.75 (75%) by something to get 120. which is 160 (the total number of all students).
and since 48 is the median score, find 50% of 160 which is 80!
hope this helps :)
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(01.01 LC)
maw [93]

Answer:

Square root of 36.

Step-by-step explanation:

The square root of 36 = 6  so this is rational.

Recall that a rational number is one that can be written as a/b  where a and b are not 0. 6 can be written as 6/1.

3 0
3 years ago
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I need help with this pls
Vilka [71]
Each chore he completed he gets $3

so 5 x 3 = 15

answer is 15
8 0
3 years ago
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Events A and B are independent. The probability of A occurring is . The probability of B occurring is . What is P(A and B)?
MArishka [77]
The probability of both A and B occurring is A×B
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3 years ago
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Please answer the questions
Naily [24]

Answer:

1/18

Step-by-step explanation:

( {2}^{ - 3}  \times  {16}^{ \frac{1}{2} } ) \div ( {81}^{ \frac{3}{4} }  \times  {27}^{  - \frac{1}{3} } ) \\  \\  =( {2}^{ - 3}  \times  {2}^{ \frac{4 \times 1}{2} } ) \div ( {3}^{ \frac{4 \times 3}{4} }  \times  {3}^{  - \frac{3 \times 1}{3} } ) \\  \\=( {2}^{ - 3}  \times  {2}^{ 2} ) \div ( {3}^{ 3 }  \times  {3}^{  - 1 } ) \\  \\=( {2}^{ - 3 + 2} ) \div ( {3}^{ 3 - 1 }  )  \\  \\  =  {2}^{ - 1}  \div  {3}^{2}  \\  \\  =  \frac{1}{2}  \times  \frac{1}{9}  \\  \\  =  \frac{1}{18}

5 0
2 years ago
A college offers shuttle service from Dickson Hall or Lot B to its
marta [7]

Answer:

At 10:30 A.M.

Step-by-step explanation:

A college offers shuttle service from Dickson Hall or Lot B to its  campus quad.

At 9:10 A.M the first shuttle leaves from their locations for the campus.

If the shuttles leave from Lot B every 10 minutes and leave from Dickson Hall every 12 minutes, then both the shuttles will leave their origin at the same time after 60 minutes.

This is because 60 is the smallest multiple of 10 and 12 which is common for them.

Therefore, 10:30 A.M. is the next time when both shuttles will depart for the campus at the same time. (Answer)

8 0
3 years ago
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