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$15.00 Please help me understand these algebra problems.
- From Mathematics: General-Mathematics
- Closed, but you can still post tutorials
- Due on Feb. 28, 2009
- Asked on Feb 28, 2009 at 7:24:59PM
Q:6/7 + 1/4 = 1/x, x=
3/2v + 8/v = 1, v=
6/x+5 = 8/x, x=
x-5/x+1 = x-5/x+6, x=
6/x-4 + 2/x+4 = 7x/x^2-16, x=
2- a-1/a+2 = a^2-1/ a+2, a=
John usually mows his lawn in 7 hous. Jane can mow the same yard in 4 hours. How long would it take fo them to mow the yard together?(Simplify answer. Type an integer, propper faction or mixed number)
The speed of a passenger tain is 18 mph faster than the speed of a feight tain. The passenger train travels 340 miles in the same timme it take the feight train to tavel 250 miles. Find the speed of each tain.
A long distance tucker taveled 28 miles in one direction during a snow stom. The return trip in rainy weather was accomplished at souble speed and took 4 hours less. Find the speed going
1 pound of honey requires 20,000 trips by bees to flowers to gather nectar. How many pounds of honey would 35,000 trips produce?
Hat sizes are detemined by measuring the circumference of one's head in either inches or centimeters. Us ration and proportion to complete the following table
HAT SIZE HEAD CIRCUMFERENCE HEAD CIRCUMFEENCE
TO NEAREST 1/5 INCH) (TO NEAEST CM)
7 1/4 22 4/5 58
7 1/8 ? ?
18/x= 4/6, x=
Find the variation constant and an equation fo variation where y varies directly as x and y=42 when x=7
The variation constant is k=
The number N of aluminum cans used each year varies directly as the number of people P using the cans. If 56 people use 15,064 cans in one yea, how many cans ae used in a city which has a population of 1,884,000?
Hooke's Law. The distance D when a spring is streched by a hanging object varies directly as the weight W of the object. If the distance is 22cm when the weight is 4kg, what is the distance when the weight is 6kg?
Find the variation constant and an equation of variation where y varies inversely as x and y=6 when x=14. Also find the variation constant.
It takes 7 hours for 5 cooks to prepae food. How long will it tlae 9 cooks to prepare the same food? Solve. Is it a direct variation or an inverse variation?
The stopping distance D of a car after the brakes are applied varies directly as the squate of speed R. If a car traveling 60mph can stop in 200 feet how many feet will it take the car to stop when taveling 50mph?
