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3 years ago

13

a number consists of two digits. One of the digit is greater than the other by 5 when the digits are reversed the number become

3 divided by 8 of the original number. find the number

1 answer:

Rom4ik [11]3 years ago

6 0

Answer:

the number is 27

Step-by-step explanation:

7 - 2 = 5

72 ÷ 3 = 24

24 ÷ 8 = 3

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What is the fraction to this equation 0.020<br><br><br> Pls help fast.

sukhopar [10]

Answer: 1/50

Step-by-step explanation:

0.020 = 20/1000 = 1/50

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Can someone help please Stickers are sold in packages of 15 sheets. If there are 20 students in the class, how many packages of

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Answer:

4 packages

Step-by-step explanation:

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What is 0.95 in simplest form

solong [7]

$0.95 \times \frac{100}{100} = \frac{95}{100} = \frac{19 \times 5}{20\times 5}\\\\ = \boxed{\bf{\frac{19}{20}}}$

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3 years ago

find the x-intercepts and the coordinates of the vertex for the parabola Y equals negative X squared plus 8X -12. If there’s mor

Oksanka [162]

Answer:

x = 2, and 6

x = 2 , 6

Step-by-step explanation:

The quadratic function to analyze is: $y = -x^2+8x-12$

In order to find where the corresponding parabola intercepts the x axis, we set it equal to zero (y = 0):

$y = -x^2+8x-12\\0 = -x^2+8x-12\\x^2-8x+12=0$

This equation is easy to solve by factoring. We look for a air of integer numbers whose product equals the constant term "12", and whose combinig renders the coefficient of the middle term of the trinomial "-8".

The two such numbers are "-2" and "-6". We use them to split the middle term, and then solve by factoring by grouping:

$x^2-8x+12=0\\x^2-2x-6x+12=0\\(x^2-2x)+(-6x+12)=0\\x(x-2)-6(x-2)=0\\(x-2)(x-6)=0$

For the product of two factors to render zero, we need either one to be a zero.This means that (x-2)=0 (that is x = 2), or (x-6)=0 (that is x = 6).

So, there are two x-intercepts: x= 2, and 6

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3 years ago

Each side of an equilateral triangle measure 11 centimeters. To the nearest tenth of an centimeter, what is the length of the al

Orlov [11]

The length of the altitude is 9.5 cm.

The altitude bisects the base of the equilateral triangle (this is because the two sides emerging from the vertex are equal). This gives us a right triangle with leg 5.5 and hypotenuse 11. We use the Pythagorean theorem:

5.5² + h² = 11²
30.25 + h² = 121

Subtract 30.25 from both sides:
30.25 + h² - 30.25 = 121 - 30.25
h² = 90.75

Take the square root of both sides:
√h² = √90.75
h = 9.5

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3 years ago