Robert weighs 144 pounds one month before he plans to run a marathon. If he loses 3 percent of his weight while training, what is his weight on the day of the marathon?

Question

skullpatrol · Answer

Any ideas?

skullpatrol · Answer

Recall: $$\Huge x	ext{%}=\dfrac{a}{b}$$

ribhu · Answer

144- 4.32 
139.68 pounds

skullpatrol · Answer

If he loses 3% of his weight, 

then he must weigh 100% — 3% = 97% of 144 pounds, right?

giz05 · Answer

3% of Robert's weight = (0.03)(144 lbs) = 4.3 lbs
 
If Robert loses 3% of his weight while training, on the day of the marathon he will weigh 144 - 4.3 = 139.7 lbs which is approximately 140 lbs

this is the best i got . I hope I'm right ...

skullpatrol · Answer

97% of 144

$$\dfrac{97}{100}•144$$

skullpatrol · Answer

Yes, you are right :-)

Check it with 0.97•144