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2 years ago

Find the product.31.24 x 3.9SHOW WORKhelp me

Mathematics

1 answer:

Novosadov [1.4K]2 years ago

7 0

Answer: 121.836

Step-by-step explanation: So the first thing you need to do is:

31.24

x3.90 you need to put the zero there because the decimal points would need to match up.

_____

Once you do that just put the decimal down. Like this:

31.24

x3.90

____ Once you do that just ignore the decimal and multiply.

Once you have finished, the answer should be 121.836.

Hope I Helped!

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A cube-shaped aquarium has edges that are 3 feet long and is filled with water that has a density of 62 lbs/ft3 Should the aquar

Sunny_sXe [5.5K]

Given:

There are given the edge of the cube-shaped aquarium has 3 feet.

Explanation:

To find the value, we need to use the volume of the cube formula:

So,

From the formula of volume:

$V=a^3$

Where

a represents the value of edge.

So,

Put the value of edge into the above formula:

Then,

$\begin{gathered} V=a^3 \\ V=3^3 \\ V=27cube\text{ feet} \end{gathered}$

Now,

The water has a density of 62 pounds per cube foot.

According to the question:

If the weight of 1 cubic foot of water is 62 pounds, then the weight of 27 cube feet water is:

$62\times27=1674pound$

Final answer:

Hence, the water weight of the full aquarium is 1674 pounds, and the table only susupports00 pounds. So the table cannot hold the aquarium.

And,

No, the density of water would not change.

6 0

7 months ago

69. The height of a triangle is 1 in more than the base. If the height is increased by 2 in while the base remains

Rainbow [258]

Answer:

Base and height

b= 5

h=6

B) area

15square in

Step-by-step explanation:

6 0

1 year ago

1.) A man invested $600 at 8% per annum for 5 years. Calculate: a.) The simple interest payable b.) The total amount of money th

Bezzdna [24]

Answer:

Following are the solution to this question:

Step-by-step explanation:

Using formula:

$\text{Simple Interest} = \frac{P \times R \times T}{100} \\\\\text{ Total amount} = \text{principle}+ \text{Simple Interest}$

In question (1):

$Principle= \$ 600\\Rate = \ 8 \%\\Time= \ 5$

In point a:

$\to \frac{P \times R \times T}{100} \\\\\to \frac{(600 \times 8 \times 5)}{100}\\\\ \to 240$

In point b:

$\to amount = principle \ +\ simple \ interest$

$= 600 + 240 \\\\= 840$

In question (2):

$Principle= \$ 12,450\\Rate = \ 7.25 \%\\Time= \ 6$

In point a:

$\to \frac{P \times R \times T}{100} \\\\\to \frac{(12,450 \times 7.25 \times 6)}{100}\\\\ \to 5,415.75$

In point b:

$\to amount = principle \ +\ simple \ interest$

$= 12,450 + 5,415.75 \\\\= 17,865.75$

The 3 question is incomplete, that's why it can't be solved.

7 0

2 years ago

the area of a right triangle is 336 square centimeters. The base of the right triangle is 48 centimeters. What is the length of

Alex73 [517]

Answer:

50 cm

Step-by-step explanation:

So the first step is to find the height, and to do that you know that the area of a triangle is height * base / 2 = area. Plugging in the numbers you have, you get:

$height*48/2=336$

Then, this becomes

$height * 24 = 336$

Divide both sides by 24

$height = 14$

Now you can use the base and the height to find the hypotenuse using the Pythagorean Theorem: $a^{2} +b^{2} =c^{2}$

$48^{2} +14^{2} =c^{2} \\2304 + 196 = c^{2}\\2500 = c^2\\50 = c\\c = 50$

Therefore the length of the hypotenuse is 50 cm

8 0

2 years ago

I need help!!! ill give brain-list!!!

In-s [12.5K]

Answer:

8 hours worked, 64 dollars

56 dollars, 7 hours worked

themepark:

5 hours worked, 45 dollars

6 hours worked, 54 dollars

8 hours worked, 72 dollars

working at the themepark earns 5 extra dollars when they work for 5 hours.

5 0

2 years ago

Find the product.31.24 x 3.9SHOW WORKhelp me​

Find the product.31.24 x 3.9SHOW WORKhelp me