MATHEMATICS MIDDLE SCHOOL

The formula for the circumference of a circle is C = 2r. What is one-fourth of the circumference of a circle that measures 12 centimeters around? If necessary, use 3.14 for .

Answers

Answer 1

Answer:

The formula of a circumference is:

$C=2\pi r$

r - radius

$C=d\pi$

d - diameter

We have d = 12cm. Substitute:

$C=12\pi\ cm$

One-fourth of the circumference:

$(1)/(4)C=(1)/(4)\cdot12\pi=3\pi\ cm\approx3\cdot3.14=9.42\ cm$

Answer: 9.42 cm.

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What number is 1/6 of 100?

Answers

CORRECT ANSWER: 96.6666666667.......96
CORRECT SOLUTION: (of means ×)
1/6×100/1=100/6
100/6=improper fraction
16×6=96....100-96=4
AS FRACTION: 16 4/6 ⇒ 16 2/3

What is the percent decrease from 60 to 39?

Answers

Answer: 35%

Step-by-step explanation: To find the percent decrease, we use the following formula.

$(Amount-of-change)/(original-number)$

The amount of change is the difference between the two numbers which in this case is 60 - 39 and the first number is 60.

$(60 - 39)/(60)$

60 - 39 is 21 so we are left with 21/60.

60 divided into 21 .35 times. However, our problem is asking for the percent which means we can move the decimal point two places to the right to get 35.

Therefore, the percent decrease is 35%.

$That\ is\ a\ decrease\ of\ \boxed{35}\ percent.$

What is another name for two halves

Answers

2 fractions, 2 pieces.... I hope this helped!

A whole :) 2 pArts or 2/2

Which number from the set {10,11,13,14} is a solution for this inequality?10x+7-7x<40
A.) 10
B.) 11
C.) 13
D.) 14

Answers

Answer:

Step-by-step explanation:

10x + 7 - 7x < 40

3x + 7 < 40

3x < 33

x < 11

Answer: a : )

Step-by-step explanation:

THE PICTURE (sorry bout the caps)

Question 1: The Millers have hired an interior designer to decorate their family room. they want to have a 22" by 30" oil painting frame and incorporated in the design plan. if the designer chooses molding that is 4" Wide and is priced at $1.45 per inch, how much will the molding cost (Before Tax)

Answers

Answer:Total molding cost is $197.20.

Step-by-step explanation:

Since we have given that

Length of oil painting frame = 22 inch

Width of oil painting frame = 30 inch

Width for molding = 4 inches

So, Length after molding would be

4+22+4 = 30 inches

Width after molding would be

4+30+4 = 38 inches

So, Perimeter of molding would be

$2(L+B)\n\n=2(30+38)\n\n=2* 68\n\n=136\ inches$

Cost per inch = $1.45

So, Total molding cost would be

$1.45* 136\n\n=\$197.20$

Hence, Total molding cost is $197.20.

Final answer:

The Millers would need to purchase 104" of molding for their 22" by 30" painting frame. At $1.45 per inch, the cost for the molding would be $150.80 before tax.

Explanation:

The cost of the molding can be calculated by first determining the total length of the molding needed and then multiplying it by the price per inch. To find the total length of the molding, we need to add the lengths of all sides of the painting frame. Since the frame is a rectangle, it will have two sides that are 22" long and two sides that are 30" long. So the total length of the molding is: 2*(22" + 30") = 104". Now, we multiply this length by the cost of the molding per inch. So, the total cost of the molding is: 104" * $1.45 = $150.80. Thus, the cost of the molding for the 22" by 30" oil painting frame using 4" Wide molding will be $150.80 before tax.

Learn more about Cost of Molding here:

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on saturday jesse plays basketball for 2/3 hour. then he plays some more. he plays 2 1/3 hours in all. how much longer did jesse play basketball? Draw a model to represent the problem. Then solve. Explain how your model helps you solve the problem.

Answers

subtract 2 1/3 and 2/3 to get 2 1/3

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