First we need to convert yard to miles
3520yards÷1760yards/mile=2 miles
From there we know:
Alex walked 1 mile for 15 mins and Sally walked 2mile in 24 mins
We need to convert these mileages to miles per hour
1mile/15mins*60mins/hour=4miles /hour
2mile/24mins*60mins/hour=5miles per hour
Alex walks at 4 miles per hour and Sally at 5 miles per hour
Sally walks 1 mile per hour faster than Alex
It completely depends on the teacher, but typically exams seem to be worth at least 50% of your final grade.
The weight is dropped from 4 feet above the surface. Add -12 to represent the distance the weight falls before it hits the bottom. 4+(-12)=8. The water is 8 feet deep.
(Prezi online)
If you're trying to factor it, the answer would be >> 2<span>(<span>x+y</span><span>)
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Kendra would have 26 quarters and 13 dimes.
26x.25=6.5
26/2=13
13x.1=1.3
6.5+1.3=7.8
