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tiny-mole [99]
2 years ago
8

Help fast pleaese Given a pyramid l = w = 9.0 mm and V = 324.0 cubic mm , find h in mm.

Mathematics
1 answer:
ikadub [295]2 years ago
8 0

Answer: h = 12mm

Step-by-step explanation:

The volume of a pyramid is given as :

V = \frac{1}{3} lwh

Therefore:

324 = \frac{1}{3} lwh

324 x 3 = 9 x 9 x h

Therefore:

h = 972/81

h = 12mm

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8 0
3 years ago
The buying rate and selling rate of a Australian dollar in a bank are rs 80.20and rs 81.40respectively how much Australian dolla
olya-2409 [2.1K]

Answer:

5000 Australian Dollars

Step-by-step explanation:

To find out how many Australian dollars need to be sold, we first need to find the profit of a single dollar sold.

We will be using the formula for profit, which is:

Profit = Total Revenue - Total Cost

Now we define the available variables.

Total Revenue = 81.40

Total Cost = 80.20

Profit = 81.40 - 80.20

Profit = rs 1.20/dollar

Now we have to find how many dollars we have to sell to get a profit of rs 6000.

We simply divide the amount of profit that we want to the price per dollar.

Total Profit = 6000

Profit per dollar = 1.20

This give us:

6000 / 1.20 = 5000 Australian Dollars.

4 0
2 years ago
how many ounces of pure water must be added to 50 ounces of a 15% saline solution to make a saline solution that is 10% salt
anygoal [31]

50 ounces of 15% saline solution contains 0.15*50 = 7.5 ounces of salt.

Let x be the amount of pure water you add to this solution. Then you end up with (x + 50) ounces of this new solution. The amount of salt stays the same.

You want the new solution to have a concentration of 10%. This means you need

7.5 / (x + 50) = 0.1

==>  7.5 = 0.1(x + 50)

==>  7.5 = 0.1x + 5

==>  2.5 = 0.1x

==>  2.5/0.1 = 0.1x/0.1

==>  x = 25

7 0
3 years ago
Find The Slope Of The Line. <br> 1/3<br> 3/1<br> 6/2<br> -3/1
Igoryamba

Answer:

1/3×3/1÷6/2×62%=3/1×31

8 0
2 years ago
Is " what is the typical amount of rainfall in Canada " a statistical question?​
AysviL [449]

Answer:

Yes

Step-by-step explanation:

Yes, the question asks for an average not the rainfall on one specific day, therefore it is a statistical question.

(accidentally answered as a comment)

5 0
3 years ago
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