18 of 72 candies in a bag are chocolates. What percent of the candies are chocolates?

25%

Step-by-step explanation:

To solve this problem, a proportion would be the easiest way to find a solution. First, set up one side of your proportion with the two numbers given: 18 and 72. These will be written in a fraction format, which will look like this:

(with p representing part and w representing the whole)

Next, set up the right side of your proportion. We know that percents will always be out of 100%, so this number will be our whole. Since we are looking for the percent out of 100-- the part --we will need to use x to represent this value. The proportion should now look like this:

To solve, just cross multiply and divide! First, multiply the 18 by the 100, giving you 1,800. Next, divide the 1,800 by 72, giving you a final answer of 25%! 25% of the candies are chocolate. Please let me know if you have any questions! :)

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

if i put something wrong your not gonna like it so rather not say nothing.