Paul says that the area of a triangle with base 16 meters and height 5 meters is 80 square meters paula says that the area is 40 square meters who is correct

Paul forgot to divide by 2. The area of a triangle is A = 1/2 * b * h

Paul just multiplied the Base and height together. 5*16 = 80.

Paula used the formula correctly. The answer is 40 square meters.

a = 11 : 4

b = 38

c = 1 for every 6

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".