MATHEMATICS MIDDLE SCHOOL

The radius of a circle is 28 centimeters. What is the diameter?

Answers

Answer 1
Answer: radius
is half of the circle
diameter
is the whole thing inside the circle
since it is a radius, and it is a half of the full circle, we need to double out that number, and multiply by 2.
so here, you said it is 28
take 28, and multiply by 2, if you do every thing correctly, you should get:
56
so then answer would be 56 centimeters.
Hope that this helps you!  =)

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1. Given a sequence is defined by the explicit definition tn=n^2+n, find the 4th term of the sequence. (ie t4)A) 4
B) 8
C) 20
D) 1806

2. Given the sequence is defined by the explicit definition tn=2^n-n, find the 5th term of the sequence. (ie t5)
A) 5
B) 10
C) 27
D) 32

Answers

Answer:

1 C) 20,

2 C)  27,

The sequence is 3,5,9,17,33

Answer:

20,

27,

3,5,9,17,33

Step-by-step explanation:

How many sixties are in 244?

Answers

just divide 244 by 60
244/60=4.06666667 anyway you only need 2 decimal place so it would be 4.06
but 60 goes in 244 4 times with the decimal
Just divide it on a calculator and you get: 4.06666667

What percent is equal to 3/10

 

Answers

3/10 = 0.3 x 100 = 30%
First you divide, so 10 divided by 3 is 0.3 and starting from the decimal, you move two times to the right and you will get your percentage which is 30%

Solve 25+10*(12-x)=5*(2x-7)

Answers

Simplifying25 + 10(12 + -1x) = 5(2x + -7)
25 + (12 * 10 + -1x * 10) = 5(2x + -7)
25 + (120 + -10x) = 5(2x + -7)
 
Combine like terms: 25 + 120 = 145145 + -10x = 5(2x + -7)
 
Reorder the terms:
145 + -10x = 5(-7 + 2x)
145 + -10x = (-7 * 5 + 2x * 5)
145 + -10x = (-35 + 10x)
 Solving145 + -10x = -35 + 10x
 
Solving for variable 'x'.
 
Move all terms containing x to the left, all other terms to the right.
 
Add '-10x' to each side of the equation.
145 + -10x + -10x = -35 + 10x + -10x
 Combine like terms: -10x + -10x = -20x145 + -20x = -35 + 10x + -10x
 
Combine like terms: 10x + -10x = 0145 + -20x = -35 + 0145 + -20x = -35
 Add '-145' to each side of the equation.145 + -145 + -20x = -35 + -145

Combine like terms: 145 + -145 = 00 + -20x = -35 + -145-20x = -35 + -145

Combine like terms: -35 + -145 = -180-20x = -180
  Divide each side by '-20'.
x = 9
 Simplifyingx = 9.
Hope this helps you ! =')

a painter is painting a home. he uses a consistent amount of pain per day. at the beginning of the project he has 225 gallons of paint. after 5 days he has 16.5 gallons in the bucket. write and solve an equation to represent this situation.

Answers

Answer:

The required equation is 5  m + 16.5 gallon  = 225 gallon

The paint used each day  = m = 41.7 gallon

Hence the amount of paint used each day = m = 41. 7 gallon

Step-by-step explanation:

Here, the total amount of paint available initially = 235 gallons

The days taken to paint home  = 5 days

Let us assume the paint used each day  = m gallons

Now, total paint used in 5 days = 5 x ( paint used in 1 day) = 5 x m = 5 m

Also, the paint left after 5 days = 16. 5 gallons

Now, according to the question:

Paint used in 5 days + left over paint  = Total paint

⇒  5  m + 16.5 gallon  = 225 gallon

or, 5 m = 225 - 16.5  =  208.5

or, m  =  208.5 / 5  = 41. 7

or, m = 41.7 gallon

Hence the amount of paint used each day = m = 41. 7 gallon

Angela goes to the Garden. There is a fountain. A circular fountain with 10m radius lies alone in the center of a circular park with a 200m radius. Calculate the total walking area available to the park visitors.

Answers

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