Question

The mass of a newborn baby's brain has been found to increase by about 1.6 mg perminute. (a) How much does the brain's mass increase in one day?

Answer 1

2304 mg

Step-by-step explanation

The rate is given in mg per minute. To find how much the brain's mass increases in one day we have to find how many minutes are in a day.

Assuming that a day has 24 hours and 1 hour has 60 minutes:

`24h\cdot(60\min)/(1h)=1440\min`

One day has 1440 minutes. Then, in one day the brain's mass increases:

`1.6mg/\min \cdot1440\min =2304mg`

The newborn baby's brain's mass increases 2304 mg in one day.