Answer:
here you go! :)
hope it helps!
Step-by-step explanation:
Answer:
Step-by-step explanation:
21x1/12=1.75 cm
1.75x10=17.55 mm
17.55 mm
A variable is a letter, for example x, y or z, that represents an unspecified number.
6 + x = 12
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.
The answer is 4.25
In the first step he never distributed the 1/12 to the 18. He only distributed to the 14
