2017 AMC 8 Problems/Problem 4: Difference between revisions
LearningMath (talk | contribs) Created page with "==Problem 4== When <math>0.000315</math> is multiplied by <math>7,928,564</math> the product is closest to which of the following? <math>\textbf{(A) }210\qquad\textbf{(B) }24..." |
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==Solution:== | ==Solution:== | ||
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> This gives our answer to be <math>\text{D)}2400.</math> | 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> This gives our answer to be <math>\text{D)}</math> <math>2400.</math> | ||
Revision as of 14:04, 22 November 2017
Problem 4
When 
is multiplied by 
the product is closest to which of the following?
Solution:
We can approximate to 
and to 
Multiplying the two yields 
This gives our answer to be 
