Achocolate maker melts three blocks of chocolate weighing 5.4 ounces, 6.1 ounces, and 5.7 ounces. if each truffle takes 0.4 ounces of chocolate, how many truffles can he make? a. 41 b. 42 c. 43 d. 44

OPTION C.

Step-by-step explanation:

You know that the chocolate maker melts three blocks of chocolate that weight 5.4 ounces, 6.1 ounces, and 5.7 ounces; therefore, the total ounces of chocolate melted is:

Let be "x" the number of truffles that he make with 17.2 ounces of chocolate.

Knowing that each truffle takes 0.4 ounces of chocolate, you can set up the following proportion:

Finally, you must solve for "x":

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15