Dave arrived to his grandmother's hours in7.75 hours.
How to solve:

-

Write all numerators above the least common denominator which is 24 in this case.

Subtract the numbers

Alternate form: 0.458333
The final, simplified, fraction answer is:
Answer:
yes
Step-by-step explanation:
Answer:
- y= 7
- y= -3
- y= -4
- y= -8
Step-by-step explanation:
y= -5x+1
=-5.-1+1
=7
Now you can do this method
If x represents the mass of 1 ball in kg, then the balance shows ...
... 6x = x + 9 kg
... 5x = 9 kg
Then 6x is ...
... (6/5)·5x = (6/5)·9 kg = 10.8 kg
0.8 kg = 0.8·1000 g = 800 g
so 10.8 kg is ...
... D. 10 kg 800 g