MATHEMATICS MIDDLE SCHOOL

What is the volume of a sphere with a diameter of 14 centimeters? Use 3.14 for pi. Round your answer to the nearest hundredth.A 1077.02 cm3
B 1436.03 cm3
C 1975.43 cm3
D 11,494.04 cm3

Answers

Answer 1
Answer:

Answer:

b

Step-by-step explanation:
Answer 2
Answer:

Answer:

B. 1436.03 cm^3

Step-by-step explanation:

What you do is use the formula of the volume of a sphere which is

v=4/3*3.14*r^3.

The r represents radius and the radius is 7 which is half the diameter.

So you will plug 7 into the formula.

V=4/3*3.14*7^3.

V=1436.03 cm^3 which is your answer.

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boris currently has $1200 in his saving account.. he saves$25 per month.he saves the same amount each month and does no take any money out of the account.in how many months will boris have $1450

Answers

10 months. First you subtract what is already in possession from what they need: $1450-$1200= $250    Then you would divide how much money is left to earn by how much money is gained every year:  $250 divided by $25= 10 months    Hope this helps!!

Answer:

Step-by-step explanation:

10 months hope this helps

The perimeter of a rectangular garden is 338
feet. If the length of the garden is
96
feet, what is its width?

Answers

Since the length is 96 ft., there are two sides of that length, so 96x2=192. Now subtract that from 338. 338-192=146. Divide that by two, since there are still two sides left. 146/2=73. The width is 73 ft.

If you fill a 4.92 cm prism with cubes who’s sides lengths are less than 1 cm what size would be the best

Answers

Answer:

  • See explanation below: either 0.984 cm or 0.85 cm depending on the complete question.

Explanation:

The question is incomplete and, thus, ambiguos.

There are two plausible interpretations: either each side of the prism has a leght of 4.92 cm, or the the units of the given measured is not cm but cm³ and 4.92 is the volume of the prism.

Considering the first option:

The best side length is the first decimal number that divides exactly 4.92cm

  • That is 4.92/5 = 0.984 cm

Considering the second option

The correct question would be "If you fill a 4.92 cm³ prism with cubes who’s sides lengths are less than 1 cm what size would be the best"

The best size of the sides lentgths is one that occupies the greatest part of each length.

Assume the prism is a cube. Then, the legth of each side is:

      \sqrt[3]{4.92}=1.70

The greatest decimal number that divides 1.70 exactly is:

  • 1.70cm/2 = 0.85cm

What is. One fifth times40?


Answers

This is basically 40/5 or just 8
the answer is 40/5
40 over 5 

What ratio equivalent to 12:21 with lower terms

Answers

12:21

12/3=4
21/3=7

12:21 = 4:7
12:21

Equivalent to 12:21 with lower terms:-

12 ÷ 3 = 4
21 ÷ 3 = 7

12:21 with lower terms can be 4:7.

Hope I helped ya!! xD

Explain how you know which coins could be used to show o.77 of a dollar

Answers

I Hope This Helps :)

The coins you could use to show 0.77 of a dollar ( or known as 77 cents ) are nickels , dimes , pennies or even quarters .

Example 1 : You could use 7 dimes which is 70 cents , 1 nickel which is 5 cents , then add 2 pennies which will add up to 77 cents .

Example 2 : You could use 2 quarters which is 50 cents , 2 dimes which is 20 cents & 7 pennies .

Example 3 : For the really long way , you could just use 77 pennies which will also give you 77 cents .

Example 4 : You could use 1 quarter , 5 dimes , & 2 pennies .

( Note : you must ALWAYS remember the values of coins when doing mathematical problems that's dealing with money )

A Penny : Is Equal To 1 Cent . ( 100 Pennies Make Up A Whole Dollar , 50 Pennies Make Up 50 Cents etc . )

A Nickel : Is Equal To 5 Cents . ( 2 Nickels Makes Up A Dime Which Is 10 Cents , 10 Nickels Makes Up 50 Cents , 20 Nickels Will Make Up A Dollar . )

A Dime : Is Equal To 10 Cents . ( 5 Dimes Is 50 Cents , 10 Dimes Is A Dollar . )

A Quarter : Is Equal To 25 Cents . ( 2 Quarters Is 50 Cents , 4 Quarters Is A Dollar . )
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