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3 years ago

Can someone help me, can you give me the answer and explanation.

Mathematics

2 answers:

Korvikt [17]3 years ago

7 0

Answer:

Step-by-step explanation:

you add 3 plus 2 which gives you 5

then it said one red marble which is 2/5 then it said another one which is 1/4

2/5 times 1/4 equals 1/10

amm18123 years ago

7 0

B

i think ;)

stay safe

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Please select the best answer from the choices provided<br> Thank you (:

Karo-lina-s [1.5K]

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4 years ago

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Central High's enrollment increases at an average rate of 100 students per year, while Washington High's enrollment increases at

Alinara [238K]

Answer:

The two schools will have the same number of students in 5 years.

Step-by-step explanation:

The number of students for both these schools, after t years, can be modeled by linear functions.

Central High:

Currently has 3000 students.

Enrollment increases at an average rate of 100 students per year.

So after t years, the number of students that Central High will have is:

$C(t) = 3000 + 100t$

Washington High:

Currently has 2000 students.

Enrollment increases at an average rate of 300 students per year.

So after t years, the number of students that Washington High will have is:

$W(t) = 2000 + 300t$

If enrollments continue to change at the same rate, when will the two schools have the same number of students?

We have to find t for which:

$C(t) = W(t)$

$3000 + 100t = 2000 + 300t$

$200t = 1000$

$t = \frac{1000}{200}$

$t = 5$

The two schools will have the same number of students in 5 years.

8 0

3 years ago

Mark purchased a new refrigerator that sells for $1300 including tax and delivery. He paid $350 down and the remaining cost in f

sashaice [31]

Answer:

$ 190.00 a month.

Step-by-step explanation:

$350.00 subtracted from $1300.00 equals $950.00. $950.00 divided by 5 equals the amount of money Mark payed each of his remaining payments.

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4 years ago

In segments JM, HK and LI are medians of triangle JHL, what is the name of point N?

FinnZ [79.3K]

Answer: Centroid

<u>Step-by-step explanation:</u>

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8 0

3 years ago

A building is of unknown height. At a distance of 400 feet away from the building, an observer notices that the angle of elevati

Harman [31]

Given :

A building is of unknown height. At a distance of 400 feet away from the building .

An observer notices that the angle of elevation to the top of the building is 35º and that the angle of elevation to a poster on the side of the building is 15º .

To Find :

How far is the poster from the roof of the building .

Solution :

Height is given by :

$h=d\times tan\theta$

( Here , $\theta$ is angle of elevation )

So , height of tower :

$H=400\times tan 35^o\\\\H=280.08 \ feet$

For height of poster :

$h=400\times tan 15^o\\\\h= 107.18\ feet$

Therefore , distance of poster from the roof of the building is :

$( 280.08-107.18) = $$172.9\ feet$

Hence , this is the required solution .

7 0

4 years ago