3.mike and beth are saving money to go to disneyworld. they need at least $1975 in order to go. mike mows yards and beth will wash cars to raise money. mike charges $25 each time he mows a yard and beth charges $15 for each car she washes. the number of cars that beth wash is no more than four times the number of lawns mike has scheduled to mow. beth will wash at least 50 cars. write a set of constraints to model the problem, with x representing the number of lawns mowed and y representing the number of dogs walked.

Step-by-step explanation:

Let x represents the number of lawns mowed by Mike and y represents the number of cars washed by Beth.

Then, the amount earned by Mike if he charges $25 for moving the lawn

And the amount earned by Beth if she charges $15 for moving the lawn

Then, as need at least $1975 in order to go Disneyworld.

So, first inequality is,

Now, it is given that the number of cars that Beth wash is no more than four times the number of lawns Mike has scheduled to mow. So, this gives the inequality,

Next, it is given that Beth will wash at least 50 cars. So,

Lastly, as the number of lawns mowed can't be negative, so

i believe that the answer is

b. y-1=-2(x-4)

hope this !

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4