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3 years ago

48 is 12% of what number?

Mathematics

2 answers:

Novosadov [1.4K]3 years ago

6 0

Answer:

I'm not sure but from my calculations,it is 400

malfutka [58]3 years ago

4 0

Answer:

400

Step-by-step explanation:

In order to find out a percentage of something you divide the percent by 100 (12/100) to get a decimal, which would be 0.12. Now with this we already know 12% of something is 48 and in order to find what we took 12% from we divide 48 by 0.12.

48÷0.12 or 48/0.12 = 400

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Find the other endpoint of the line segment with the given endpoint and midpoint. Endpoint: (0,3) Midpoint: (5,-9)

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3 years ago

What expression is equivalent to? Screenshots attached. Please help!

Galina-37 [17]

Answer:

the correct option is C i.e. $8x^4yz^4\sqrt{2yz}$

Step-by-step explanation:

We need to solve the expression :

$\sqrt{128x^8y^3z^9}$

Factors of 128 are: 2x2x2x2x2x2x2

and we know √ = 1/2

and √a.b = √a.√b

Solving:

$=\sqrt{128x^8y^3z^9}\\\\=\sqrt{128} \sqrt{x^8} \sqrt{y^3} \sqrt{z^9}\\=\sqrt{2x2x2x2x2x2x2}\sqrt{x^8} \sqrt{y^2.y} \sqrt{z^8.z}\\=\sqrt{2^2x2^2x2^2x2}\sqrt{x^8} \sqrt{y^2.y} \sqrt{z^8.z}\\=(2^2)^{1/2} (2^2)^{1/2}(2^2)^{1/2} (2)^{1/2} (x^8)^{1/2} (y^2)^{1/2} (y)^{1/2} (z^8)^{1/2} z^{1/2}\\=2.2.2.(2)^{1/2}x^4y(y)^{1/2}z^4(z)^{1/2}\\=8x^4yz^4\sqrt{2yz}$

So, the correct option is C i.e. $8x^4yz^4\sqrt{2yz}$

7 0

3 years ago

While eating lunch Cary notices that 16 students in her class chose to eat a hot dog, while 12 students in her class chose to ea

Evgen [1.6K]

9514 1404 393

Answer:

4 : 3

Step-by-step explanation:

The ratio of numbers of students is ...

hot dog : hamburger = 16 : 12 = 4 : 3

To reduce the ratio to lowest terms, remove the common factor of 4 from each number. 16 = 4·4; 12 = 4·3.

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3 years ago

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Is 3(–2) + 7(2) equivalent to (–3)(–3) + (–1)(1)? Let negative numbers be represented with a "–" symbol and positive numbers be

jek_recluse [69]

3(-2) + 7(2) = 8
(-3)(-3) + (-1)(1) = 8
yes

3 0

3 years ago

The square of a number decreased by ten times the number is negative nine.

Free_Kalibri [48]

Answer:

9 OR 1

Step-by-step explanation:

Let the number be x

x² - 10x = -9

x² - 10x + 9=0

a=1

b=-10

c=9

Solve using the quadratic formula

x =9 or 1

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3 years ago

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