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elixir [45]
4 years ago
8

What is 48% of 72 time 3 divided by 9

Mathematics
2 answers:
devlian [24]4 years ago
8 0
11.52 72×3=216x48÷100÷9= 11.52
irga5000 [103]4 years ago
7 0
72x3=216
216x48divided by 100 divided by 9=11.52
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The Sahara Desert has an area of approximately 9 400 000 km^2. While estimates of its average depth vary, they center around 150
Andrew [12]

Answer:

a). 1.128\times 10^{25} grains

b). \frac{1}{8000}

c). 6.54305\times 10^{7} years

Step-by-step explanation:

a). Given Sahara desert has an area of approximately = 9400000 km²

= 9400000×(10000000000) cm²

= 9.4\times 10^{16} cm²

Depth of the desert = 150 m

= 15000 cm

Volume of desert = Area × Depth

= 9.4\times 10^{16}\times 15000

= 1.41\times 10^{21} cm³

Since 1 cm³ holds sand grains = 8000

Therefore, Grains in Sahara Desert = 1.41\times 10^{21}\times 8000

= 1.128\times 10^{25}

b). Since 1 cm³ = 8000 grains

1 grain = \frac{1}{8000} cm³

c). A truck can carry sand = 20.5 m³ Or 20.5\times (10^{2})^{3} cm^{3}

= 2.05\times 10^{7} cm³

Now time taken to recreate Sahara Desert = \frac{\text{Total amount of sand}}{\text{Sand in one truck}}\times 30 seconds

=  \frac{1.41\times 10^{21}}{2.05\times 10^{7}}\times 30

= 20.6341463\times 10^{14} seconds

= \frac{20.6341463\times 10^{14} }{365\times \times 24\times 3600} years

= 6.54305\times 10^{7} years

6 0
3 years ago
Evaluate the expression -(5/7)^0
NeX [460]

Answer:

1

Step-by-step explanation:

6 0
3 years ago
An 8 kg toddler is running at a speed of 10 m/s. How much energy does he have?
Svetradugi [14.3K]

Answer:

As you know, g = 9.81 m/s on the surface of the Earth. ... If the action force is the force she exerts downward on the chair, what is the reaction force? ... it take a 10-N force to increase the speed of a 10-kg toy car from 1.00 m/s to 4.00 m/s? ... (DH 32) How many joules of kinetic energy does a .5 kg cart have when it is ...

Step-by-step explanation:

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3 years ago
PLEASE HELP STAT AND FILL IN THE BLANKS
Reil [10]

Answer: So if Allison has 30 beads and each bracelet has 7. She would make 4 bracelets with 2 left over. The sentence would be If Alyson made 4 bracelets she would use 28 beads, leaving 2 left over.

Step-by-step explanation: 30/7 is 4 with a remainder of 2

4 0
3 years ago
Elmer works in a computer store. He is paid a weekly salary $180 and a commission of 4.5% of all sales. One week, he sold $9770
WINSTONCH [101]

Answer:

$619.65

Step-by-step explanation:

We know that he gets paid 180 a week, but we don't know how much he got from the commission of his sales. To find it, you multiply 9770 by 0.045 (because 0.045 = 4.5%) which you get 439.65. You then add the 180 to get 619.65.

5 0
3 years ago
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