A merchant bought boxes of chocolate and of candies of total mas$ 4000g and total cost 21600
One box of chocolate weighs 400 g and costs 2400 LL, and one box of candies weighs 200 g and
costs 800 LL.
1) Identify the unknowns, and then translate the given in a system of two equations with two
unknowns.
2) Solve the system to culculate the number of boxes of each kind.

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

boxplot e is the answer

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.