A jar contains 40 dimes and nickels. The total value of the coins is $2.75. If d = the number of dimes and n= the number of nickels, this is the system of
equations:
d+ n = 40
0.100+ 0.05n = 2.75
How many of each type of coin are there? Solve the system to answer the
question.

she gotta workk that a 2

step-by-step explanation:

for future students the answer is b

hope i

-lavira: )

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