X+ dy = 13 passes through the point (-18, 7). what value of d accurately completes the equation?

Hi there!

When given a point of an equation, you need to know that the first number is on the "x" axis and the second number is on the "y" axis. So you should imagine the point you are given like this : (x, y).

Now that this is clear, you can now know replace the values of "x" and "y" in the equation by their value given in your point :

x = -18

y = 7

x + Dy = 13

-18 + 7D = 13

All you have to do now is solve the equation by isolating the "D" :

-18 + 7D = 13

Add 18 on each side of the equation

7D = 31

Divide each side of the equation by 7

D = 4.42857143

D ≅4.43

There you go! I really hope this helped, if there's anything just let me know! :)

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6

$655.61 which is option c

step-by-step explanation:

price of house =   $146,000

initial rate = 3.5%

mortgaged paid in this = 3.5 % of $146,000

                                        =

                                        =$5110

the total years would be = 7

total mortgaged paid = 7 * $5110

                                      =$35770

remaining money = $146000-35770

                                =$110230

new mortgaged payment = 5 % of 110230

                                            =  

                                            =$655.61