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kow [346]
3 years ago
15

What is 2,190-2,910=

Mathematics
1 answer:
DochEvi [55]3 years ago
3 0

Answer:

-720

Step-by-step explanation:

2910 is obviously bigger than 2190 so your answer will result in a negative so what you could do is 2910-2190 which is 720 and add a negative in front of it.

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What is: -1/8+3/8-5/8+7/8=
sergeinik [125]

Answer:

= 1/2

Step-by-step explanation:

- 1/8 + 3/8 - 5/8 + 7/8 = ?

2/8 - 5/8 +7/8

-3/8 + 7/8

= 4/8 --> (simply) =1/2

Hope it was helpful! If you are unsure about something or my answer is wrong then please let me know so I fix my mistakes! Also a good website to use is Desmos Scientific Calculator to check your answer!

7 0
3 years ago
Read 2 more answers
The 10th term of an arithmetic proression is 68 and the common difference is 7 find the first term of the sequence
leonid [27]

Answer:

5

Step-by-step explanation:

first term + (10-1)7=68

first term= 68- 63=5

3 0
3 years ago
If water and oil are combined in a container, the resulting liquid is a(n)
Misha Larkins [42]
If water and oil are combined in a container, the resulting liquid is C.emulsion.
4 0
3 years ago
1. Factor x²+5x-24 <br> 2. Factor 2n²-5n-3
Fynjy0 [20]

Given problems;

 1. Factor;  x²+5x-24

To factor this equation, we must understand that this is a quadratic equation.

A quadratic equation usually has two roots.

  • Equate to zero;

            x²+5x-24 = 0

  • Then find two numbers whose product is -24 and their sum is +5

  the numbers are  +8 and -3

 then replace 5x with the number;

        x² + 8x - 3x - 24  = 0

Now factorize;

     x(x +8) - 3(x + 8) = 0

        (x-3)(x+8)  = 0

Factoring gives (x-3)(x+8)

2. Factor 2n² - 5n -3;

Equate to zero;

   2n² - 5n -3 = 0

Find the number whose sum is -5 and the product gives -6( 2 x -3);

      the number is -6 and +1;

   2n² - 6n + n -3 = 0

   2n(n-3) + 1(n-3) = 0

     (2n + 1)(n-3) = 0

The factor of the equation is (2n + 1)(n-3).

6 0
3 years ago
The length of a rectangular deck is 5 times its width. If the deck’s perimeter is 24 feet, what is the deck’s area?
spayn [35]

Answer:

20ft²

Step-by-step explanation:

Let the length = L

Let the width = W

Perimeter of a rectangle = 2L + 2W

Translating the word problem into an algebraic equation, we have;

L = 5W .......equation 1

2L + 2W = 24 ........equation 2

To find the width

Substituting equation 1 into equation 2, we have;

2(5W) + 2W = 24

10W + 2W = 24

12W = 24

W = 24/12

Width, W = 2 ft

To find the length;

Substituting the value of "W" into equation 1, we have;

L = 5W

L = 5*2

L = 10 ft

To find the area of the rectangle;

Area = LW

Area = 10*2

<em>Area = 20 ft²</em>

Therefore, the deck's area is 20 feet square.

5 0
3 years ago
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