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julia-pushkina [17]
3 years ago
11

Y+9÷2=y-3÷4-(y/3)pls help​

Mathematics
2 answers:
faust18 [17]3 years ago
6 0

Step-by-step explanation:

There are 2 scenarios below. One without parenthesis and the second with. I believe the second one is your question.

  • y+9÷2=y-3÷4-(y/3)
  • y - y + y/3 = - 3/4 - 9/2               ⇒ combining like terms
  • y/3 = -3/4 - 18/4
  • y/3 = -21/4
  • y = -21/4*3
  • y = -63/4
  • y = - 15 3/4

===============

  • (y+9)÷2=(y-3)÷4-(y/3)
  • 12*(y+9)/2 = 12* (y-3)/4 - 12*y/3      ⇒ this is to get rid of fraction
  • 6(y+9) = 3(y-3) - 4y
  • 6y + 54 = 3y - 9 - 4y
  • 6y + 54 = - y - 9
  • 6y + y = - 9 - 54
  • 7y = - 63
  • 7y/7 = -63/7
  • y = -9
Ann [662]3 years ago
3 0

Answer:

y = - \frac{63}{4} or - 15.75

Step-by-step explanation:

Order of operations.

y + \frac{9}{2} = y - \frac{3}{4} - \frac{y}{3} Subtract y from each side.

y - y + \frac{9}{2} = y - y - \frac{3}{4} - \frac{y}{3}

\frac{9}{2} =  - \frac{3}{4} - \frac{y}{3}   Add \frac{3}{4} to each side

\frac{9}{2} + \frac{3}{4} = - \frac{3}{4} + \frac{3}{4} - \frac{y}{3}

\frac{9}{2} + \frac{3}{4} = - \frac{y}{3}    Find the common denominator for \frac{9}{2} and \frac{3}{4}, which is 4

\frac{9}{2} * \frac{2}{2} + \frac{3}{4} = - \frac{y}{3}

\frac{18}{4} + \frac{3}{4} = - \frac{y}{3}

\frac{21}{4} = - \frac{y}{3}   Multiply each side by 3

\frac{21}{4}  * 3 = - \frac{y}{3} * 3

\frac{63}{4} = - y      Divide each side by -1

y = - \frac{63}{4} = - 15 \frac{3}{4}

y = - 15.75

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10s^3 + 25s^2 +8s +20 factor this expression with work?
-Dominant- [34]

Factor 10s^3+25s^2+8s+20

(2s+5)(5s^2+4)


I hope that's help again !

5 0
3 years ago
What is 10:40 plus 7:15 in time?​
sp2606 [1]

Answer:

5:55

Step-by-step explanation:

10 plus 7 in time is 5 and 15 plus 40 is 55

4 0
2 years ago
Read 2 more answers
Y = 2x + 4 <br> 16x + 4y = 40
Dafna11 [192]
<span>Y = 2x + 4 
16x + 4y = 40

substitute </span>Y = 2x + 4  into <span>16x + 4y = 40

</span><span>16x + 4y = 40
</span>16x + 4(2x + 4) = 40
16x + 8x + 16 = 40
24x  = 40 - 16
24x = 24
x = 1

Y = 2x + 4 
Y = 2(1) + 4 
Y = 6

answer (1, 6)
6 0
3 years ago
Read 2 more answers
Solve the system of linear equations using the elimination method x=3y;3x-2y=14
vladimir1956 [14]

Answer:

<h2>x = 6 and y = 2 → (6, 2)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}x=3y&\text{subtract}\ 3y\ \text{from both sides}\\3x-2y=14\end{array}\right\\\\\left\{\begin{array}{ccc}x-3y=0&\text{multiply both sides by (-3)}\\3x-2y=14\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-3x+9y=0\\3x-2y=14\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad7y=14\qquad\text{divide both sides by 7}\\.\qquad\qquad y=2\\\\\text{put the value of y to the first equation:}\\x=3(2)=6

7 0
3 years ago
If u(x) =-2x^2 and v(x)=1 over x what is the range of (uov) (x)
Radda [10]

u(x) = -2x², v(x)= 1/x

(u o v)(x) = u(v(x)) = -2(1/x)²= -2/x²

We can see that domain for x is going to bee all real numbers except 0. From the equation above we can see that graph of the function (u o v)(x) = -2/x² has horizontal asymptote y=0, because degree of numerator is less than degree of denominator ( (u o v)(x) = -2x⁰/x² ).

x² is always going to be positive, so range is going to be all negative numbers.

y<0, or y∈(0,-∞)

6 0
3 years ago
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