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Roman55 [17]
3 years ago
5

Which expression is equivalent to −19y+13 ? −19(−y+3) −19(−y+13) 19(−y+3) 19(−y+13)

Mathematics
1 answer:
lawyer [7]3 years ago
4 0
Sorry, i can't do it.

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Could you guys simplify this for me please.. i’m not that good at math so I might as a few more
Nataly [62]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The sum of two numbers is 68. The second number is 2 more than twice<br> the first.
e-lub [12.9K]

Answer:

22 and 46

Step-by-step explanation:

let

one number is x

another is 2x+2

now 2x+2+x=68

or, 3x+2=68

3x=66

or x=66/3=22

so one number is 22 and another is (22X2+2)=46

4 0
3 years ago
What is the solution of this system of linear equations? 3y=3/2x+6 1/2y-1/4x=3.
tensa zangetsu [6.8K]

Answer:

No solution

Step-by-step explanation:

Please, separate equations with a comma, or the word "and," or a semicolon.

Next, determine the LCD and multiply both equations by it, so as to elimiinate the fractional coefficients.

3y=3/2x+6 1/2y-1/4x=3

should be written as the system

   3y=(3/2)x+6         Use parentheses around the fraction for clarity

(1/2)y-(1/4)x=3            Same:  use parentheses

The LCDs here are 2 (for the first equation) and 4 (for the second equation).  Multiply the first equation by 2 to eliminate the fractions:

   3y=(3/2)x+6         →   6y = 3x + 12, and

4[ (1/2)y-(1/4)x=3 ]     →   2y  -  x   = 12

Let's use the substitution method to solve this system.  Solve the 2nd equation for x, obtaining x = 2y - 12.  Substitute 2y - 12 for x in the 1st equation 6y = 3x + 12:

6y = 3(2y - 12) + 12, or

6y = 6y - 36 + 12

This reduces to 0 = -24, which is never true.  Thus,

this system has NO solution.

 

5 0
3 years ago
Trevor needs new bike tires. His bike tires have a circumference of about 113.04 inches. What is the diameter of his tires?
Korolek [52]

Answer:

So therefore, the diameter is 36 inches

Step-by-step explanation:

first you would divide by 2, which is 56.52

(about) then divide by pi and you get 18.

so multiply 18 by 2 and you get 36. 

7 0
3 years ago
Which one of these is the identity for addition?
Sedaia [141]

Answer:

Zero

Step-by-step explanation:

In math, an identity is a number, n, that when added to other numbers, gives the same number, n. The additive identity is always zero. This brings us to the identity property of addition, which simply states that when you add zero to any number, it equals the number itself

6 0
3 years ago
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