Can someone please help me , I'm going to fail

-4/9

Step-by-step explanation:

if you solve that is what you get

Answer is 3/10

Step-by-step explanation:

Step by Step Solution

STEP

1

:

            8

Simplify   ——

           15

Equation at the end of step

1

:

 5     8

 — -  ——

 6    15

STEP

2

:

           5

Simplify   —

           6

Equation at the end of step

2

:

 5     8

 — -  ——

 6    15

STEP

3

:

Calculating the Least Common Multiple :

3.1    Find the Least Common Multiple

     The left denominator is :       6  

     The right denominator is :       15  

       Number of times each prime factor

       appears in the factorization of:

Prime  

Factor   Left  

Denominator   Right  

Denominator   L.C.M = Max  

{Left,Right}  

2101

3111

5011

Product of all  

Prime Factors  61530

     Least Common Multiple:

     30  

Calculating Multipliers :

3.2    Calculate multipliers for the two fractions

   Denote the Least Common Multiple by  L.C.M  

   Denote the Left Multiplier by  Left_M  

   Denote the Right Multiplier by  Right_M  

   Denote the Left Deniminator by  L_Deno  

   Denote the Right Multiplier by  R_Deno  

  Left_M = L.C.M / L_Deno = 5

  Right_M = L.C.M / R_Deno = 2

Making Equivalent Fractions :

3.3      Rewrite the two fractions into equivalent fractions

Two fractions are called equivalent if they have the same numeric value.

For example :  1/2   and  2/4  are equivalent,  y/(y+1)2   and  (y2+y)/(y+1)3  are equivalent as well.

To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.

  L. Mult. • L. Num.      5 • 5

  ——————————————————  =   —————

        L.C.M              30  

  R. Mult. • R. Num.      8 • 2

  ——————————————————  =   —————

        L.C.M              30  

Adding fractions that have a common denominator :

3.4       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

5 • 5 - (8 • 2)      3

———————————————  =  ——

      30            10

Final result :

  3            

 —— = 0.30000  

 10          

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

it's