Respuesta :

Answer:

see the explanation

Step-by-step explanation:

we know that

A gross is equal to 120 ones or ten dozen

what is 15 tens - 1 gross

we know that

15 tens means ----> That you are adding 10, 15 times or multiplying 10 by 15, which gives you

[tex]10(15)=150[/tex]

1 gross means ---> That you are adding 10, 12 times or multiplying 10 by 12

which gives you

[tex]10(12)=120[/tex]

so

The algebraic expression of 15 tens - 1 gross is equal to

[tex]150-120=30[/tex]

Convert to word expression

3  tens