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pogonyaev
3 years ago
8

There is a bag filled with 5 blue and 4 red marbles.

Mathematics
1 answer:
xeze [42]3 years ago
5 0

Answer:

There are 9 total marbles

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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)

So

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
The minute hand of a clock is 3 inches long. How far does the tip of the minute hand move in 40 minutes​?
Mkey [24]

Answer:

  4π in ≈ 12.57 in

Step-by-step explanation:

One full revolution (2π radians) is made in 60 minutes. In 40 minutes, the hand moves through an angle θ of (40/60)(2π) = 4π/3 radians. The length of the arc is ...

  s = rθ = (3 in)(4π/3) = 4π in ≈ 12.57 in

6 0
3 years ago
Evaluate sin(36°), round your answer to four decimal places.
Mrrafil [7]

Answer:

sin(36^{\circ})=\approx 0.5878

Step-by-step explanation:

We are given that

sin(36^{\circ)

We have to find the value of sin(36^{\circ)

To find the value of sin(36^{\circ)  we will use table of sin

From sin table

We get

sin(36^{\circ})

=0.587785

We have to round off the answer to four decimal places

Therefore,

sin(36^{\circ})=\approx 0.5878

7 0
3 years ago
Given f(x)=3x-1 and g(x)=-x+6 find f(-2)+g(5)
olasank [31]

Given f(x)=3x-1 and g(x)=-x+6 find f(-2)+g(5)

f(-2)+g(5) = 3(-2) - 1 + (-5 + 6)

f(-2)+g(5) = -6 - 1 + 1

f(-2)+g(5) = -6

8 0
3 years ago
Read 2 more answers
Solve by substituting the equation y=-x-6 y=x-4<br>(plz show work)
Elena-2011 [213]

Answer:

x = -1, y= -5

Step-by-step explanation:

y=-x-6

y=x-4

Since both equations are equal to y we can set them equal to each other

-x-6 = x-4

Add x to each side

-x-6+x = x-4+x

-6 = 2x-4

Add 4 to each side

-6+4 = 2x-4+4

-2 =2x

Divide by 2

-2/2 = 2x/2

-1 = x

now find y

y = x-4

y = -1-4

y = -5

4 0
3 years ago
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