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2 years ago

12) The sum of two natural numbers is 30. If one of the numbers is one-

Mathematics

2 answers:

Sholpan [36]2 years ago

4 0

Answer:

D.) 5 x 25 = 125

Step-by-step explanation:

The two numbers are 25 and 5. If you take 1/5 of 25, or simply divide by 5, you will get 5.

densk [106]2 years ago

3 0

Answer:

A) X + Y = 30

B) X = .2Y OR X - .2Y = 0

We subtract B) from A)

1.2Y = 30

Y = 25 X = 5

X * Y = 125

Answer is d.) 125

Step-by-step explanation:

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A textbook is opened and the product of the page numbers of the pages is 6162. What are the numbers of the pages?

ss7ja [257]

Answer:

The two page numbers are 78 and 79.

Step-by-step explanation:

Let's take the page numbers are x and x + 1 .

The produce of the page numbers is 6162

so, x(x + 1) = 6162

$x^{2} + x -6162 = 0$

Here we have to use the quadratic formula to solve for x.

The quadratic formula, x = $\frac{-b +/- \sqrt{b^2 - 4ac} }{2a}$

Here a =1, b = 1 and c = -6162

Plugging in the value of a, b and c in the above formula, we get

x = [-1 ± 157] ÷ 2

Let's take the positive value alone since the page number cannot be negative.

x = [-1 + 157] ÷2

x = 78

The next page number x + 1 = 78 + 1 = 79

Therefore, the two page numbers are 78 and 79.

6 0

2 years ago

If f(x) = 3 - 2x and g(x)= 1/(x+5),what is the value of (f/g) (8)?

Alekssandra [29.7K]

Answer:

(f/g)(8) = -169

Step-by-step explanation:

Simply plug in x = 8 into our equation:

$\frac{3-2(8)}{\frac{1}{8 + 5} }$

$\frac{-13}{\frac{1}{13} }$

-13(13)

-169

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2 years ago

Find the area of the figure. Assume the figure is made up of triangles.

grigory [225]

S = 2*(1/2 * 7 * 14) + 2* (1/2 * 7 * 7) = 7*14 + 7*7 = 7*(14+7) = 7*21 = 147 sm^2

Number B

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3 years ago

For f(x)=1/x^2-3, find a) f(3) b) f(2+h) Show/explain work

valentina_108 [34]

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3 years ago

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tino4ka555 [31]

Answer:

Step-by-step explanation:

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3 years ago

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