SOLUTION: i have two word problems that i cannot figure out: 1. The estimated number of international visitors to the U.S. each yr. in millions can be estimated and projected by the formul

Question 442993: i have two word problems that i cannot figure out:
1. The estimated number of international visitors to the U.S. each yr. in millions can be estimated and projected by the formula V=2.18t+ 46.46, where t is the number of years since 2004. find the number of visitors in 2007.
2. From a base elevation of 9600 ft. Long's peak in Colorado rises to a summit elevation of 14,255ft. from the base to the peak the horizontal distance is 15,840 ft.. find the grade of long's peak, expressed as a percentage rounded to the nearest tenth.
thank you so much!
my name is lee, i need a math tutor here in the sac. area, or online that is accessible often. i can pay $10.00 a hour or a little more only, i am a single parent with three children, and attend class online.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1. The estimated number of international visitors to the U.S. each yr. in millions can be estimated and projected by the formula V=2.18t+ 46.46, where t is the number of years since 2004. find the number of visitors in 2007.
------------
V(t) = 2.18t+ 46.46
t = 3 in 2007.
V(3) = 2.18*3+46.46 = 53
------------------------------
2. From a base elevation of 9600 ft. Long's peak in Colorado rises to a summit elevation of 14,255ft. from the base to the peak the horizontal distance is 15,840 ft.. find the grade of long's peak, expressed as a percentage rounded to the nearest tenth.
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grade = rise/run = (14255-9600)/15840 = 0.2939 = 29.4%
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Cheers,
Stan H.
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