SOLUTION: Earth is covered by land and water. The proportion covered by land is 3/5 of that covered by water. What fraction of entire surface of earth is land ?
Option are: 1/2, 3/8, 1/3, 2
Algebra.Com
Question 779625: Earth is covered by land and water. The proportion covered by land is 3/5 of that covered by water. What fraction of entire surface of earth is land ?
Option are: 1/2, 3/8, 1/3, 2/5
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
L = Land
W = Water
;
.
The second equation rearranges to... not needed yet.
Substitute the second equation into the first equation and solve for W.
, requiring that
RELATED QUESTIONS
If earth's radius is 4000mi, With 2/3 covered by water and 1/3 covered by land. How much... (answered by solver91311)
Earth’s radius is approximately 4000 mi. About two-thirds of Earth’s
surface is covered (answered by ankor@dixie-net.com)
earth's radius is approximately 4000 miles. about 2/3 of earth's surface is covered by... (answered by checkley77)
Earth's radius is approximately 4000 mi. About two-thirds of Earth's surface is covered... (answered by mananth)
The area of the earth surface is 530 million km. Approximately 7/10 of the earth surface... (answered by Cromlix)
the mean radius of the earth is 6,371 km, and 70.8% of its surface is covered by water.... (answered by ankor@dixie-net.com)
assuming the earth to be a sphere of radius 6370km how many square kms is area of land if (answered by stanbon)
A rectangular tract of land 20m by 30m has part of its area covered by an I-shaped road,... (answered by ankor@dixie-net.com)
About 1/2 of Canada is covered in forest and about 1/12 is covered in fresh water. What... (answered by richwmiller)