A bottle contains 125 multivitamin tablets. Each tablet contains 20 milligrams of niacin. How many grams of niacin in all are contained in the bottle?

Answer

2.5

Step-by-step explanation:

125 vitamins, 20 milligrams in each.

convert 20 milligrams to grams, 0.02

multiply 0.02 by 125

2.5

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.