260 miles per day.
Step-by-step explanation:
We have to calculate the unit rate for 780 miles in 3 days.
We can solve this question by unitary method.
∵ In 3 days = 780 miles
∴ In 1 day =
= 260 miles.
260 miles per day.
yes I had explained
Step-by-step explanation:
The mole is a key unit in chemistry. The molar mass of a substance, in grams, is numerically equal to one atom's or molecule's mass in atomic mass units. ... A balanced chemical reaction gives equivalences in moles that allow stoichiometry calculations to be performed