When ever you combine different elements the chemical properties change because elements are different , unless you combine the exact same elements.
Answer:
I think its saying 9+3= 12/6 = 15 so that it a improper fraction. so do you need it to change in a proper fraction or mix number
Answer:
D. 21.9%
Step-by-step explanation:
(650÷2970)x100= 21.88% rounded off 21.9%
give more information
Step-by-step explanation:
This can be treated as a work problem and we can solve it as follows:
Harland working alone = 15 minutes
Trudy scatters the leaves + Harland rakes = 20 minutes
We set scattering as a negative value.
1/15 - 1/x = 1/20
x = 60 minutes for Trudy to scatter the leaves alone