Example choose the method of computation
planets the chart shows the distance of selected
planets from the sun. about how much farther is it from
earth to the sun than from mercury to the sun?
distance from sun
planet
(millions of miles)
mercury
36.00
venus
67.24
earth
92.90
mars
141.71
explore you know the distance from earth to the sun
and the distance from m
to the sun.
om
an
you need to find about how much farther it is from
isun
to the
sun!
plan
the question uses the word about, so an exact
answer is not needed. we can solve the problem
using
estimate each distance
and then
solve
distance from earth to the sun:
92.9
distance from mercury to the sun: 36.0
so, earth is about
copyright glencoo/mcgraw-hill, a division of the mcgraw-hill companies, inc.
million miles further from the sun than mercury.
check
since
= 93, the answer makes sense.
homework
assignment
page(s):
exercises:
check your progress. school enrollment east
elementary school has 792 students enrolled. west elementary
school has 518 students enrolled. about how many more
students does east elementary have than west elementary?
glencoe pre-algebra