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2 years ago

Please help will give brainliest

Mathematics

1 answer:

nika2105 [10]2 years ago

7 0

i cannot read it swry

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There are 21 students in a class. The median age of the students is 23. The oldest student is 29.

Varvara68 [4.7K]

Answer:

1) At least one (the 11th) student is 23 (years old), Must be true

2) Some students are younger than 15 Could be true

Step-by-step explanation:

1) The given parameters are;

The number of student in the class = 21

The median age of the student = 23

The age of the oldest student = 29

Therefore, given that the median age = The age of the (n + 1)/2 th student

Where;

n = The number of student in the class = 21

∴ The median age = The age of the (21 + 1)/2 th = 11 th student, when the age of the students are arranged in increasing order, therefore, we have;

At least one (the 11th) student is 23 (years old), Must be true

2) Given that there are 10 students with ages equal to or lower than the median age, and the difference between the median age and the age of the oldest student = 29 - 23 = 6 years, we have;

Some students are younger than 15 Could be true

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3 years ago

Find the surface area of the cube (above) using its net (below).

lana66690 [7]

$\mathsf \green{ {96 \: units}^{2} }$

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1 year ago

John can complete a paper route in 20 minutes. Steve can complete the same route in 30 minutes. How long will it take them to co

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12 minutes to complete the route together

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2 years ago

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Find the missing fraction. ___ + 1/16 = 3/2 No links!

DochEvi [55]

Answer:

23/16

Step-by-step explanation:

3*8/2*8=24/16-1/16=23/16

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2 years ago

A 5000 seat theater has tickets for sale at 26 and 40. How many tickets should be sold at each price for a sellout performance t

slavikrds [6]

Answer:

The number of tickets for sale at $26 should be 3300

The number of tickets for sale at $40 should be 1700

Step-by-step explanation:

Use 2 equations to represent the modifiers within the problem:

$5000 = a + b \\ 153800 = 26a + 40b$

Now you want to find the point at which the variables are changed to make both equations correct, this can be done by graphing and finding the intersection of both lines.

$5000 = 3300 + 1700 \\ 153800 = 26(3300) + 40(1700)$

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2 years ago