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3 years ago

If the length, width, and height of a cube all change by a factor of 9, what happens to the volume of the cube?

Mathematics

2 answers:

luda_lava [24]3 years ago

7 0

Answer:

The volume will increase 729 fold.

Step-by-step explanation:

If the length, width, and height of a cube all change by a factor of 9.

The answer is 729 fold, or 9 cubed.

As if original length is l

The original width is w

And original height is h

Volume = l x w x h

But when all change by a factor of 9, we get

9l x 9w x 9h

= 729 fold

Therefore, the volume will increase 729 fold.

solong [7]3 years ago

4 0

the volume will also increase by the factor of 9

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Suppose you buy a 1.25-pound package of ham at $5.20 per pound. (a) What fraction of a pound did you buy? (b) How much money did

FrozenT [24]

25/100=1/4
a) you bought 1 1/4 pound of ham
b) $6.50
1.25 x $5.20=$6.50

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3 years ago

Read 2 more answers

Eric took out an 80/20 mortgage to buy a house costing $175,000. The first (80%) mortgage has an interest rate of 4.75%, and the

Serhud [2]

Answer:

The total monthly mortgage payment for the house is $975.63

Step-by-step explanation:

The principle amount is $175000

80% of 175000 is = $0.8\times175000$ = $140000

20% of 175000 is = $0.2\times175000$ = $35000

Emi formula is :

$\frac{p\times r\times(1+r)^{n} }{(1+r)^{n}-1 }$

For 1st part:

p = 140000

r = 4.75/12/100=0.00395

n = $30*12=360$

Putting values in formula we get

$\frac{140000\times0.00395\times(1.00395)^{360} }{(1.00395)^{360}-1 }$

= $729.508

For 2nd part:

p = 35000

r = 7.525/12/100=0.00627

n = $30*12=360$

Putting values in formula we get

$\frac{35000\times0.00627\times(1.00627)^{360} }{(1.00627)^{360}-1 }$

= $245.301

Adding both the monthly payments:

$729.508+245.301=974.809$ dollars

This is closest to option A.

So, option A is the answer.

And for 30 years the mortgage payment will be =

$975.63\times12\times30=351226.80$ dollars

5 0

3 years ago

5+r−2=9 what is da value of R?

Basile [38]

Answer:

r=9-5+2

r=6

Step-by-step explanation:

this is the correct answer

please mark me as brainlist

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3 years ago

My friend sets out walking at a speed of $3$ miles per hour. I set out behind her $5$ minutes later at $4$ miles per hour. When

r-ruslan [8.4K]

Answer: The answer is 0.25 miles.

Step-by-step explanation: Given that my friend started walking at a speed of 3 miles per hour and I started 5 minutes after him at a speed of 4 miles per hour. We need to find the number of miles my friend travelled when I started walking.

Since I started 5 minutes after than my friend, so we are to find the distance travelled by my friend in 5 minutes.

In 1 hour, i.e., 60 minutes, distance travelled by my friend = 3 miles.

In 1 minute, distance travelled by my friend is

$\dfrac{3}{60}=\dfrac{1}{20}~\textup{miles}.$

Therefore, distance travelled by my friend in 5 minutes will be

$\dfrac{1}{20}\times 5=\dfrac{1}{4}=0.25~\textup{miles}.$

Thus, the answer is 0.25 miles.

3 0

2 years ago

Read 2 more answers

How to find the area of irregular figures

Cloud [144]

Instead, break down the shape into rectangles. Next, calculate the area of both rectangles and add them together. The area of the first rectangle is 72 square centimeters and the area of the second rectangle is 50 square centimeters. Together there are 72 + 50 = 122 square centimeters.

That is how u find a irregular figure..hope this help u

3 0

3 years ago