The volumes of two similar solids are 8 ft3 and 125 ft3. the surface area of the smaller solid is 4 ft2. what is the surface area of the larger solid?

25 square feet

Step-by-step explanation:

We are given that

Volume of smaller solid= 8 cubic feet

Volume of large solid=125 cubic feet

Surface area of smaller solid=4 square feet

We have to find the surface area of larger solid.

Volume of is a cubic function

Ratio of two solids=6:125

Where a= Side of small solid

b=Side of large solid

Ratio of corresponding sides of two solids=2:5

When two solids are similar then the ratio of surface area

Area of small solid: area of larger solid=

4: area of large solid=4: 25

Area of larger solid=

Hence, the area of larger solid=25 square feet

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies