MATHEMATICS MIDDLE SCHOOL

Given a=5, d=3,an =50 .find the n and 5n​

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

an = 50

a +(n-1)d = 50

5 + (n-1)*3 = 50

(n-1)*3 = 50 - 5 = 45

n-1 = 45/3

n-1 = 15

n=15+1 = 16

n = 16
Answer 2
Answer:

Answer:n=10, 5n=50

Step-by-step explanation:

an=50

n=50/a

n=50/5=10

5n=5×10=50

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3n+8=23 answer and the work to show the answer please

Answers

Answer: n = 5

Step-by-step explanation: To solve for n, we must first isolate the term containing n which in this problem is 3n.

Since 8 is being added to 3n, we subtract 8 from both sides of the equation to isolate the 3n. On the left, the +8 and -8 cancel out and on the right 23 - 8 is 15.

So we have 3n = 15.

Now we can finish things off by just dividing both sides of the equation by 3. On the left the 3's cancel and on the right 15 divided by 3 is 5 so n = 5 and you can check your answer by plugging 5 back in for n in the original equation which is shown below in bold.

3(5) + 8 = 23 or 15 + 8 = 23.

Answer:

n = 5

Step-by-step explanation:

3n + 8 = 23

     - 8    - 8   Subtract 8 from both sides

3n = 15

n = 5      Divide both sides by 3

The front of an A-frame house is in the shape of a triangle.The height of the house is 20 feet.The area of the front of a A-frame is 600 square feet. Write and solve an equation to find the base of the A-frame house.

Answers

600 divided by 20=30
30x2=60 which is the answer

equation= 600=2x area divied by height 

'What is the surface area, in square inches, of an 8-inchcube?
F. 512
G. 384
H. 320
J. 256
K. 192'

Answers

surface are is length times height.
8*8=64
a cube has 6 sides
64*6=384

Kaynard's first step in solving this rational equation is to simplify it by multiplying both sides by a common denominator. Which is the simplest expression he can use to do this?

Answers

x^2 - 9 = (x + 3)(x -3)

3x - 9 = 3(x - 3)

and

6

Common denominator would be 6(x+3)(x - 3)

Answer: 6(x+3)(x - 3)

Help me! I don't remember any of this.

Answers

The meal costs $7.50. She wants to leave a 20% tip.

A 10% tip would be 75 cents ($0.75), because 7.5 / 10 = 0.75.

A 20% tip would be $1.50 because 7.5 / 5 = 1.50

You can also multiply the 10% answer by 2 to get the same number.

The volumes of each figure that make the composite figure have been determined.Cone V = 24π cm3

Cylinder V = 63π cm3

How is the volume of the composite figure calculated?
-add the 2 volumes
-divide the 2 volumes
-multiply the 2 volumes
-subtract the 2 volumes

What is the approximate volume of the composite figure? Round to the nearest hundredth.
8.25 cubic centimeters
122.52 cubic centimeters
273.72 cubic centimeters
4,750.09 cubic centimeters

Answers

Answer:

Add the two volumes

273.32

Step-by-step explanation:

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Answer:

Add the two volumes

273.32

Step-by-step explanation:

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