Oscar and Maria each wrote an equation that they felt represented the proportional relationship between length in centimeters and length in inches. They each referred to a table that compared centimeters to inches. One entry in the table paired 127 centimeters with 50 inches. Who wrote the correct equation that would relate centimeters to inches? Explain why. Oscar wrote the equation c = 2.54i, and said that the unit rate 2.54 represents centimeters per inch.
Maria wrote the equation c = 0.394i, and said that the unit rate 0.394 represents centimeters per inch.

inch

Step-by-step explanation:

im dumb sorry

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".

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42