What system of equations would model this situation?

n+d=45

5n+10d=375

Step-by-step explanation:

n+d=45

Is the amount of nickels +dimes=45 total coins

5n and 10d is the amount those coins are worth

Since those don't have decimals, the answer must be a whole number.

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

b.-4 units

all you   do is count how many times you move