“all you can eat tuesdays” at a local café offers a full salad bar that costs $10 for children and $15 for adults. last tuesday, the café had total revenue of $180. which equation expresses this real-world situation if x represents the number of children and y represents the number of adults?

10x + 15y = 180

Step-by-step explanation:

hope i helped 3 days later lol srry

10x + 15y = 180

Step-by-step explanation:

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

answer: about 22.67

step-by-step explanation: