Answer for 1a. with explanation

x = 3, y = -1   →   (3, -1)

Step-by-step explanation:

When solving a system, you want the coefficients of one of the variables to be opposites (same number but different signs).

Multiply each equation by a number that will create one of the coefficients to be opposites.  Then add the two equations to eliminate one of the variables.

2x  - 5y = 11      →    3(2x - 5y = 11 )      →    6x - 15y = 33

-3x + 4y = -13    →    2(-3x + 4y = -13)   →   -6x + 8y = -26

                                                                          -7y =   7

                                                                        ÷-7    ÷-7  

                                                                             y = -1

Now input y = -1 into either of the equations to solve for x

2x -  5y  = 11

2x - 5(-1) = 11

2x  + 5   = 11

2x          =  6

 x          =   3

So, the solution to the system is: x = 3, y = -1   →   (3, -1)

Using the table method, input values for x into each of the equations to solve for y.  If both equations result in the same y-value, then that is your solution.

Try x = 0:

 1st equation                                2nd equation  

  2x - 5y₁ = 11                                  -3x + 4y₂ = -13

2(0) - 5y₁ = 11                                 -3(0) + 4y₂ = -13

   0  - 5y₁ = 11                                     0   + 4y₂ = -13

           y₁ =                                       y₂ =

                         y₁ ≠ y₂ so this is not a solution

Do the same for x = 1, x = 2, and x = 3.  The result is the table below.

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.

the cat is blue because the probability of extension towards the prefix of the diameter of the circle could only mathematically equal to the sum of the roots of the carrots from   your garden.

step-by-step explanation: