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Anton [14]
2 years ago
10

3 consecutive odd integers such that the sum of twice the first and three times the second is 55 more than twice the third

Mathematics
1 answer:
den301095 [7]2 years ago
3 0

Answer:

Consecutive odd integers are 19 , 21 & 23

Step-by-step explanation:

Let the first 3 consecutive odd intergers be x , (x + 2) and (x + 4).

According to the question,

2x + 3(x + 2) = 2(x + 4) + 55

=  > 2x + 3x + 6 = 2x + 8 + 55

Eliminating 2x from both the sides,

=  > 3x + 6 = 63

=  > 3x = 63 - 6 = 57

=  > x =  \frac{57}{3}  = 19

So, the consecutive odd integers are = 19 , 21 & 23.

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X+y+z=-6<br> x-y+3z=-18<br> 2x+2y+2z=-8
Temka [501]

Answer:

Step-by-step explanation:

hello :

the system is : x+y+z=-6.....(1)

                      x-y+3z=-18.....(2)

                   2x+2y+2z=-8.....(3)

use (3): 2(x+y+z) = - 8    so : x+y+z = -4

use (1) : x+y +z = -6          -6=-4 false

no solutions

3 0
2 years ago
Read 2 more answers
What is the distance between the points 3, 7 and 15, 6 on a coordinate plane
krok68 [10]

Answer:

D=\sqrt{145 }\\

Step-by-step explanation:

We are actually using Pythagorean theorem here but to be simple

we can use the equation:

D(distance)=\sqrt{(x_{1}- x_{2} )^{2} +( y_{1}-y_{2})^{2}}

=

D=\sqrt{(15-3)^{2}+(6-7)^{2} } =\\D=\sqrt{(12)^{2}+(-1)^{2} } =\\\\D=\sqrt{144+1 } =\\D=\sqrt{145 }\\

(If you meant 16 instead of 6 the answer would be 15)

Hope this helps!

8 0
3 years ago
For what values of x would the following be true?<br> -2(x-3)&lt;4
emmainna [20.7K]

Answer:

x > 1

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

-2(x - 3) < 4

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Divide -2 on both sides:                    x - 3 > -2
  2. Add 3 to both sides:                          x > 1

Here we see that any value <em>x</em> greater than 1 would work as a solution to the equation.

7 0
3 years ago
There are 2 cubes that are numbered 1 through 6. During a game, both are rolled and the faces landing up are added. How many way
den301095 [7]
I count 5. There could be more. Sorry. Don't have scratch paper at the moment.
7 0
3 years ago
it took margaret 2 hours and 14 minutes to clean her room(including her closet). write the time it took margaret to clean her ro
Tpy6a [65]
An hour has 60 minutes in it, so the simplified form would be
2 14/60 (The 2 should be the whole number in front of the fraction)

In order to change it into a decimal, change it into an improper fraction and divide
134/60
2.23
5 0
3 years ago
Read 2 more answers
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