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tensa zangetsu [6.8K]
3 years ago
15

80% is 50 of what number

Mathematics
1 answer:
Nostrana [21]3 years ago
3 0

Answer:

62.5

Step-by-step explanation:

Let unknown number be represented as X

80/100 ×X=50

80X/100=50 cross multiply

80X=5000 divide both side by 80

X=62.5

The number is 62.5

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Help me... I did it again! I skipped the practice and study guides
Katyanochek1 [597]

Answer:

X = 1 3/4

Step-by-step explanation:

Hope this helps!

4 0
2 years ago
Please help!
crimeas [40]

Answer:

The zeros are:

x =4, x=2, x = 5

  • The function has three distinct real zeros.

Hence, option (B) is true.

Step-by-step explanation:

Given the expression

h\left(x\right)=\left(x-4\right)^2\left(x^2-7x+\:10\right)

Let us determine the zeros of the function by putting h(x) = 0 and solving the expression

0=\left(x-4\right)^2\left(x^2-7x+10\right)

switch sides

\left(x-4\right)^2\left(x^2-7x+10\right)=0

as

x^2-7x+\:10=\left(x-2\right)\left(x-5\right)

so

\left(x-4\right)^2\left(x-2\right)\left(x-5\right)=0

Using the zero factor principle

  • \mathrm{If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)

so

x-4=0\quad \mathrm{or}\quad \:x-2=0\quad \mathrm{or}\quad \:x-5=0

x =4, x=2, x = 5

Thus, the zeros are:

x =4, x=2, x = 5

It is clear that there are three zeros and all the zeros are distinct real numbers.

Therefore,

  • The function has three distinct real zeros.

Hence, option (B) is true.

4 0
2 years ago
How do you solve 4 [ 5 ( 12 + 3 ) - 2 ] - 7
laila [671]
4 [ 5 (12 + 3) - 2 ] - 7

4 [ 5 (15) - 2 ] - 7

4 [ 75 - 2 ] - 7

4 [ 73 ] - 7

292 - 7

285
3 0
3 years ago
Is 5/6 less than 2/12
Ostrovityanka [42]
No, 5/6 is greater.

1) First, you have to get a common denominator, lets use 12
2) To get from 6 to 12 you would multiply times 2
3) Do the same to the numerator(the top number) which is to multiply 5 x 2
4) 5 x 2= 10 
5) So, now your fraction has become 10/12

And let me ask you, which is bigger, 10/12 or 2/12
(10/12 is bigger and 2/12 is less)
8 0
3 years ago
Quadratic formula 4x^2-16=
m_a_m_a [10]
Look 4x^2-16 is 0 because 4x^2 is 16 so 16 -16 is 0
3 0
3 years ago
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