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Phantasy [73]
3 years ago
11

Find a number which decreased by 12 equals 3 times it’s opposite

Mathematics
1 answer:
-BARSIC- [3]3 years ago
4 0

Answer:

The number is 3.

Step-by-step explanation:

To find : A number which decreased by 12 equals 3 times it’s opposite ?

Solution :

Let the number be 'x'.

It's opposite is '-x'.

A number which decreased by 12 equals 3 times it’s opposite

i.e. x - 12 = 3(-x)

Solving the equation,

x-12=-3x

x+3x=12

4x=12

x=\frac{12}{4}

x=3

Therefore, the number is 3.

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Lynna [10]
The answer to represent a check for 10$ is A. -10
6 0
3 years ago
A sum of money was to be divided among A,B, and C in the ratio 2:3:5. The largest share amount to $4500 what is the total amount
Alika [10]

Answer:

2:3:5 = 480:720:1200

(a) 480+720+1200

(b) 480

(c) 720/(a)

Step-by-step explanation:

8 0
2 years ago
Rewrite the following expression x^9/7
Alexxx [7]

Answer:

\sqrt[7]{x^9}

Step-by-step explanation:

its kinda difficult for me to explain so i guess just use this equation next time:

x^{m/n} = \sqrt[n]{x^m}

4 0
3 years ago
Divide: (-7x+x^2+15)÷(-3+x)
kakasveta [241]
Since the divisor is in the form (x + #) or (x - #), This can be done by synthetic division.
First put the polynomial ion descending order: x^2 - 7x + 15
Take the coefficients of the terms and follow these steps:

3 |  1 -7  15
         3  -12
___________  Bring down the 1, multiply the 3 by the 1 and place under the
     1  -4    3       -7, then add.
                         Multiply 3 by -4, place under the 15, then add.
       The bottom row is our answer. Since the problem started with a second power, the answer will start with a first power.
The bottom row are the coefficients of the terms and the last number is the remainder.
x - 4 remainder 3 ALSO WRITTEN   x - 4 + 3/(x -3)
3 0
3 years ago
2 dots plots with number lines going from 0 to 10. Plot A has 0 dots above 0, 1, and 2, 1 above 3, 2 above 4, 2 above 5, 2 above
alexandr402 [8]

Answer:

First one:

Both the mean and median are greater for Plot A than for Plot B

Step-by-step explanation:

Set A:

Mean:

[1×10 + 2×7 + 2×6 + 2×5 + 2×4 + 1×3]/10

= 5.7

Median:

Median position: (10+1)/2 = 5.5th value

(5+6)/2

Median = 5.5

Set B:

Mean:

[1×7 + 3×6 + 3×5 + 2×4 + 1×3]/10

= 5.1

Median:

Median position: (10+1)/2 = 5.5th value

(5+5)/2

Median = 5

Mean: A is greater

Median: A is greater

8 0
3 years ago
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