Difference between revisions of "2017 AMC 8 Problems/Problem 4"
Nukelauncher (talk | contribs) m (→Solution:) |
(→Video Solution) |
||
(9 intermediate revisions by 7 users not shown) | |||
Line 1: | Line 1: | ||
− | ==Problem | + | ==Problem== |
When <math>0.000315</math> is multiplied by <math>7,928,564</math> the product is closest to which of the following? | When <math>0.000315</math> is multiplied by <math>7,928,564</math> the product is closest to which of the following? | ||
Line 5: | Line 5: | ||
==Solution== | ==Solution== | ||
− | We can approximate <math>7,928,564</math> to <math>8,000,000 | + | We can approximate <math>7,928,564</math> to <math>8,000,000</math> and <math>0.000315</math> to <math>0.0003.</math> Multiplying the two yields <math>2400.</math> Thus, it shows our answer is <math>\boxed{\textbf{(D)}\ 2400}.</math> |
+ | |||
+ | ==Video Solution (CREATIVE THINKING!!!)== | ||
+ | https://youtu.be/5wa99PngBSo | ||
+ | |||
+ | ~Education, the Study of Everything | ||
+ | |||
+ | ==Video Solution== | ||
+ | https://youtu.be/cY4NYSAD0vQ | ||
+ | |||
+ | https://youtu.be/wau6o6XP8hY | ||
+ | |||
+ | ~savannahsolver | ||
+ | |||
+ | ==See Also== | ||
+ | {{AMC8 box|year=2017|num-b=3|num-a=5}} | ||
+ | |||
+ | {{MAA Notice}} |
Latest revision as of 17:38, 31 March 2023
Problem
When is multiplied by
the product is closest to which of the following?
Solution
We can approximate to
and
to
Multiplying the two yields
Thus, it shows our answer is
Video Solution (CREATIVE THINKING!!!)
~Education, the Study of Everything
Video Solution
~savannahsolver
See Also
2017 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 3 |
Followed by Problem 5 | |
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
All AJHSME/AMC 8 Problems and Solutions |
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions.