Time - high school - practice problems
Number of problems found: 443
- Summaries
A specialist teacher observes time taken by each of the students with learning disabilities to complete a psychological task. She summaries the times using the following: Time Taken(mins) ; 1-5; 6-10; 11-12; 16-20 No. of Student ; 2 ; 4 ; 12; 4 Using the - A ship
A ship has been spotted by two lighthouses A, B as shown in the figure. What is the distance from the ship to Lighthouse A, to the nearest tenth? Figure - distance between lighthouses A and B is 40 nautical miles. From A is seen in view angle 57° and from - A Ferris wheel
A Ferris whee with a diameter of 100 feet makes 5 revolutions every 8 minutes. The base of the wheel is 4 feet above the ground. Your friend gets on at 3PM sharp. a) wrote an equation to express the height in feet of your friend at any given time in secon - Impulse, force and momentum
A 50 kg mass is sitting on a frictionless surface. An unknown constant force pushes the mass for 2 seconds until the mass reaches a velocity of 3 m/s. What is the value of the unknown force? b) through your solutions prove that Impulse and momentum will h - The change The change in momentum of an unknown object was 56N.s. What was the force applied when it moved a distance of 2m in 10 seconds?
- Three trucks
There are places A and Y, three trucks, B, C, and D, respectively. Truck B is 60 km/h, C is 40 km/h and D is 80 km/h. Trucks B and C start at place A while D starts at Y. After D and B meet, two hours later, will D meet C. What is the distance between pla - Melanie
Melanie invests a total of $21,500 in two accounts. The first account earned a rate of return of 15% (after a year). However, the second account suffered a 10% loss in the same time period. At the end of one year, the total amount of money gained was $225 - Maggie
Maggie observes a car and a tree from a window. The angle of depression of the car is 45 degrees and that of the tree is 30 degrees. If the distance between the car and the tree is 100 m, find Maggie's distance from the tree. - Perpendicular 73574
The two lines of the triangle are perpendicular to each other and are 27 cm and 36 cm. Calculate the length of the sides of the triangle and the length of the third line. - Triangle 73464
The given line is a BC length of 6 cm. Assemble a triangle so that the BAC angle is 50 ° and the height to the side is 5.5 cm. Thank you very much. - What amount
What amount of money will be required to repay a loan of $30000 on June 1, 2008. If the loan was made on September 1, 2001 at the interest rate of 14% compounded quarterly. - Loonie
Loonie has three wooden sticks measuring 17 inches, 21 inches, and 25 inches. He lays them down to form a triangle. Find the measure of the angle enclosed by 17 inches and 21 inches. (Express answers to the nearest hundredths) (using the law of cosines) - Binibini
Binibini owns a triangular residential lot bounded by two roads which intersect at 70°. The sides of the lot along the road are 62m and 43m respectively. Find the length of the fence needed to enclose the lot. (express answers to the nearest hundreths) - Suppose 6
Suppose the life span of a revolutionary light bulb is normally distributed with a mean life span of 70 thousand hours and a standard deviation of 3 thousand hours. If a light bulb is chosen at random: a) what is the probability the life span will be with - 10km race
Joan's finishing time for the bolder boulder 10 km race was 1.77 standard deviations faster than the women for her age group. There were 415 women who ran in her age group. Assuming a normal distribution, how many women ran faster than Joan? - A man 7
A man wandering in the desert walks 3.8 miles in the direction S 44° W. He then turns and walks 2.2 miles in the direction N 55° W. At that time, how far is he from his starting point? (Round your answer to two decimal places.) - The probability
The probability that a life bulb will have a life time of more than 682 hours is 0.9788. The probability that a bulb will have a life time of more than 703 hours is 0.0051. Find the probability that a bulb will last for more than 648 hours. - The truck
What is the mass of a 10 wheeler truck if it has reached a momentum of 567kg.m/s while it moves at 40m/s - Hypotenuse 72524
We know the height of the hypotenuse h = 4cm and the hypotenuse c = 19cm in a right triangle. How to calculate the segments of legs - sections on the hypotenuse c1, c2 - Chocolates 72154
Adam and Andrej bought sweets. Adam paid € 2.9 for three chocolates and 2 bars, and Andrej paid € 4 for four chocolates and 3 bars. How much did the chocolate cost, and how much did the bar cost?
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