Problem |
1) Dorey goes to Italy and Greece every year for about half the year. The European currency is the euro
with symbol €. She brings back clothing to sell. At the beginning of her trip the dollar to euro exchange
rate is $1.00 = € 0.66. She buys silk shirts at € 35 a shirt. How much is that in dollars?
|
2) Mrs. Marchinson asks Joey to fertilize the lawn according to the direction on the bag and gives him the bag of fertilizer. He uses a spreader to spread the whole bag evenly over the whole lawn. The bag says to apply 5 lbs/1000 sq ft. and it is a 20 pound bag. Her lawn measures 60 ft by 30 ft. To the nearest whole number percent, by what percent did he over fertilize her lawn?
|
3) A conical filter (see picture) is being used to filter sediment from some dirty water out of a stream. The height and diameter of the right circular cone are both 8 centimeters. In one minute the water level in the cone drops from 8
centimeters to 6 centimeters. How much dirty water has been filtered? Express you answer to the nearest tenth of a cubic centimeter.
Volume of a cone is 1⁄3 r2 h.
r is the radius and h is the height. Use = 3.14
|