Answer:
y=⁻
should be your answer in decimal form its y=-0.619047
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given
New mail carrier takes 4 hours for delivery i.e.
New mail carrier completes
part of work in 1 hour
Old mail carrier takes 3 hours for delivery i.e.
mail carrier completes
part of work in 1 hour
If they work together, they complete the work in x hours i.e.

Answer: -3/2
Step-by-step explanation:
2
3
4
−9
=
2
3
−4
9
=
−3
2
The correct answer for this would be 32/5