Distance = Speed × Time
Distance = (4.5 mi)/(0.75 h) × (3.5 h) = 21 mi
The walker will cover 21 miles in 3.5 hours at that pace.
Do you have any answer choices?
3n+2n+4=9n+12
5n+4=9n+12
4-12=9n-5n
-8=4n
Divide both sides by 4
n=-2
I get:
24 = 3x-12
add 12 to both sides
36 = 3x
divide each side by 3 and you will get 12
Answer:
Mitochondria is the site where oxygen combines with small molecules and releases large amounts of energy.
Mitochondria is a cell organelle
It produces ATP, which is considered as energy currency of cell.
