It CAN'T equal 21, since 9+10=19
BUT, if the 9 was changed to like, 11 - Then it would = 21, or if the 10 was changed to a 12, it would make 21 also,
Answer: 6
Step-by-step explanation: you make a number line or you can start on your left from -15,-14,-13,-12,-11,-10,-9, you “hop” 6 times on a number line to get to -9
Answer:
and
.
Step-by-step explanation:
Let I represent inches and F represent feet.
We have been given that on he scale drawing of a car, the length from bumper to bumper is 6 inches. The car's actual length, from bumper to bumper, is 16 feet.
We will use proportions to solve our given problem as:


Now, let us solve for
.


Now, let us solve our equation for F.



Therefore, our required equations would be
and
.
The greatest common factor is sometimes one because that is the only thing that can go into it.