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3 years ago

Simplify 8 3/4 plus 9 2/8

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

8 0

Answer:

Step-by-step explanation:

8 3/4 + 9 2/8

We can simplify 2/8 by dividing the top and bottom by 2

8 3/4 + 9 1/4

Add the whole numbers

8+9 = 17

3/4 + 1/4 = 4/4 = 1

Add this to the whole numbers

17+1 = 18

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Identify the pair of angles as complementary, supplementary, both, or neither.

nikitadnepr [17]

Answer:

Complementary

Step-by-step explanation:

Because that angle is 90°

8 0

2 years ago

Read 2 more answers

The product of two positive integers us 2005. F neither integer is 1, what is the sum of the two integers?

Brums [2.3K]

Answer:

406

Step-by-step explanation:

Given: product of two positive integers us 2005.

Let the two positive integers be a and b

Now prime factorization of 2005 = 401×5

where both 401 and 5 are prime number and non of them is 1.

So, and b will be 401 and 5 respectively.

Therefore, sum of the two integers a+b = 401+5 = 406

8 0

2 years ago

What two numbers multiply to -126 and add up to -65

Airida [17]

Xy = -126
x + y = -65

$xy = -126$
$\frac{xy}{x} = \frac{-126}{x}$
$y = \frac{-126}{x}$

$x + y = -65$
$x + \frac{-126}{x} = -65$
$\frac{x^{2}}{x} + \frac{-126}{x} = -65$
$\frac{x^{2} - 126}{x} = -65$
$-65x = x^{2} - 126$
$0 = x^{2} + 65x - 126$
$x = \frac{-(65) \+ \sqrt{(65)^{2} - 4(1)(-126)}}{2(1)}$
$x = \frac{-65 \± \sqrt{4225 + 504}}{2}$
$x = \frac{-65 \± \sqrt{4729}}{2}$
$x = \frac{-65 \± 68.8}{2}$
$x = \frac{-65 + 68.8}{2}$ $or$ $x = \frac{-65 - 68.8}{2}$
$x = \frac{3.8}{2}$ $or$ $x = \frac{-133.8}{2}$
$x = 1.9$ $or$ $x = -66.9$

x + y = -65
  1.9 + y = -65
- 1.9   - 1.9
y = -66.9
  (x, y) = (1.9, -66.9)

or

  x + y = -65
  -66.9 + y = -65
+ 66.9 + 66.9
y = 1.9
  (x, y) = (-66.9, 1.9)

The two numbers that add up to -65 and can multiply to -126 are the numbers -66.9 and 1.9.

3 0

3 years ago

Solve for x. Show each step of the solution. Show all work. 4.5(8-x)+36-2.5(3x+24)=102

sergejj [24]

4.5(8 - x) + 36 = 102 - 2.5(3x + 24)

36 - 4.5x + 36 = 102 - 7.5x - 60

72 - 4.5x = 42 - 7.5x

-4.5x + 7.5x = 42 - 72

3x = - 30

x = -30/3

x = -10 <===

Hope this helps!

4 0

3 years ago

HELP ASAP

Westkost [7]

Answer:

(5 1/2)(7.25)=

11/2(7.25)

=39.875

Step-by-step explanation:

multiply 5 1/2 by 7.25 and u will have yo answer

5 0

3 years ago

Read 2 more answers