Janesa has 24 coins in her pocket word exactly $1 she tells her younger brother Jackson that she can have the coins if you go directly guess how many of each corner is she gives them a hint that are only nickels and pennies

19 nickels and 5 pennies

Step-by-step explanation:

Let x nickels and y pennies

100 = 5x + y

x + y = 24

y = 24 - x

100 = 5x + 24 - x

4x = 76

x = 19

y = 24 - x = 24 - 19 = 5

456567546657689765432567890-9876543567890-987657890

step-by-step explanation:

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".