Id built a tower out of blocks with his nephew. each block was 1 3/4 inches tall,
except the top block, which was only 1 inch tall. they built a 44 3/4 inch tall tower.
how many blocks did they use? use mathematics to justify your answer.

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

560

step-by-step explanation:

giggidy

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.