Michael uses a blend of dark chocolate and milk chocolate to make the ice cream topping at his restaurant. He needs to buy 100\,\text{kg}100kg100, start text, k, g, end text of chocolate in total for his next order. Dark chocolate costs \$12$12dollar sign, 12 per kilogram, milk chocolate costs \$10$10dollar sign, 10 per kilogram, and he wants to spend \$1120$1120dollar sign, 1120 total. Let ddd be the number of kilograms of dark chocolate he buys and mmm be the number of kilograms of milk chocolate he buys.

Michael buys 60 kg of dark chocolate and 40 kg of milk chocolate.

Step-by-step explanation:

Let d be the number of kilograms of dark chocolate Michael buys and m be the number of kilograms of milk chocolate he buys.

He needs to buy 100 kg of chocolate in total, then

Dark chocolate costs $12 per kilogram, then d kg cost $12d. Milk chocolate costs $10 per kilogram, then m kg cost $10m. Michael wants to spend $1,120 for the chocolate, then

From the first equation

Substitute it into the second equation:

Michael buys 60 kg of dark chocolate and 40 kg of milk chocolate.

idk

step-by-step explanation:

use that smart brain

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.