You bought 3/4 pounds of dry ice. but you only use 1/3 if it how much dry ice did you use

Amount of dry ice used =

Step-by-step explanation:

Weight of dry ice bought = pounds

Fraction of dry ice used =

To find the amount of dry ice used.

Solution:

Amount of dry ice used can be calculated as:

⇒

⇒ pounds

⇒ pounds

Multiplying numerator and denominators.

⇒ pounds

⇒ pounds

Simplifying fractions by dividing the numerator and denominator bt their GCF.

⇒ pounds

⇒ pounds

∴ Amount of dry ice used =

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".

1e+27

step-by-step explanation: