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zhenek [66]
1 year ago
9

The density of copper is 8.94 g/cm^3. What is the mass of a rectangular sheet of copper: 10 cm wide, 45 cm long, and 0.2 cm thic

k?
Mathematics
1 answer:
Brums [2.3K]1 year ago
4 0
Density = mass/volume


Let mass=x

8.94= x/(10*45*.2)

X=8.94*90
Mass=804.6 g

Hope this helped :)
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3) Original price of a tie: $29.50<br> Discount: 50%<br> Tax: 5%
Reptile [31]

Answer:

$15.49

Step-by-step explanation:

29.50*.50=14.75

14.75*.05=.74

14.75+.74=15.49

8 0
2 years ago
After paying $5.12 for a salad, Norachai has $27.10. How much money did he have
maxonik [38]

Answer: $32.22

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A thief steals a number of rare plants from a nursery. On the way​ out, the thief meets three security​ guards, one after anothe
DedPeter [7]

The thief originally stole 64 plants.

<h3>What is arithmetic?</h3>

In mathematics, it deals with numbers of operations according to the statements.

Here,
Let the number of plants originally stolen by the thief be x.
On the way​ out, the thief meets three security​ guards, one after another. To each security​ guard, the thief is forced to give one-half of the plants that he still​ had, plus 2 more.​

Here,
For gourd 1 the planet is given = 1/2 x
For gourd 2 the planet is given = 1/2 * 1/2 x = 1/4 x
For gourd 3 the planet is given = 1/2*1/4 x = 1/8 x
Total plant given to the gourds = 1/2x +1/4x +1/8x + 2 = 7/x/8x +2
Finally, the thief leaves the nursery with 10 plants
x - 7x/8 + 2 = 10
x/8 = 8
x = 64

Thus, the thief stole 64 plants.

Learn more about arithmetic here:

brainly.com/question/14753192

<h3>#SPJ1</h3>


7 0
1 year ago
$425 is 17% of what number
9966 [12]
Set it up at 425=.17x
Solve for x by dividing both sides by .17 to get x=2500
Answer is 2500
6 0
3 years ago
Simplify by factoring. What are the excluded values? Choose all that apply.
makvit [3.9K]

Answer:

x = -2

x = 8

Step-by-step explanation:

Excluded values are the ones which make the denominator zero

3x² + x - 10

3x² + 6x - 5x - 10

3x(x + 2) - 5(x + 2)

(x + 2)(3x - 5)

x² - 6x - 16

x² - 8x + 2x - 16

x(x - 8) + 2(x - 8)

(x - 8)(x + 2)

[(x + 2)(3x - 5)] ÷ [(x - 8)(x + 2)]

(3x - 5)/(x - 8)

So excluded values are 8, -2

6 0
3 years ago
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