Algebra - math word problems - page 240 of 312
Number of problems found: 6224
- Test grade average
One of the conditions for classification with grade 2 in geography is to obtain an average of at least 64 points from four tests. The minimum number of points a skater must receive from the fourth test to meet this condition is if she received 59, 67, or - Henry
Henry has scored 72, 67, 82, and 79 on his Algebra tests. Use an inequality to find the score he must achieve on the final exam to pass the course with an average of 77 or higher, given that the final exam counts as two tests. - Class height average
There were 21 pupils in the class, and arithmetically, the average height of these pupils was 163 cm. Calculate what the average height in the class will be if: a) A 159 cm tall student was added to the class b) A 169 cm tall student left the class - Capacity of iron
What was the initial temperature of an iron object weighing 30 kg that absorbed 3.5 kJ of heat when heated to 39 °C? The specific heat capacity of iron is 450 J/(kg·°C). - Steamer
At 6:40 AM, a steamboat departed from a port at a speed of 12 km/h. At exactly 10:00 AM, a motorboat set off at 42 km/h in the same direction. When will the motorboat catch up with the steamboat? - Water temperatures
To 25 liters of water at 50 °C, we add 15 liters of water at a different temperature. How many °C should the water be colder than 50 °C so that 40 liters of the water obtained has a temperature of 42.5 °C? - Car textbook pursuit
At 9 a.m., a truck with textbooks left Brno at a speed of 50 km/h; at 9:30 a.m., a passenger car left Brno with another delivery of textbooks at a speed of 70 km/h. When will the passenger car catch up with the truck? - Car speed average
The car traveled the first third of the track with a constant speed of v1, the next two-thirds of the way at a constant speed of v2=72 km/h, and the average speed of v=36 km/h. Find v1. - Gold tin alloy
To make a gold decorative item, we alloy 250 g of 18-carat and 200 g of 14-carat gold with tin. How much tin must be added to obtain 14.6-carat gold? Express the purity of the obtained gold in the sense of the applicable legislation. - Path speed relation
Suppose the relation s = v applies to the calculation of the path s. t, express the relation for calculating speed v and the relation for calculating time t. Is it true that 10 km will travel at 90 km/h in 10 minutes? - Thermometer
A thermometer with a heat capacity of 2.0 J/K is immersed in 67.0 grams of water. Before immersion, the thermometer reads 17.8 °C. After reaching thermal equilibrium, the temperature is 32.4 °C. What was the temperature of the water before the measurement - Vehicle meeting calculation
A car departs from place A at 1:00 PM at a speed of 72 km/h. At the same time, a truck departs from point B toward A at a speed of 68 km/h. Point B is 315 km from A. When and where will they meet? - The convoy
During a military exercise, the convoy left the camp at 5 hours at a speed of 40 km/h. Half an hour later, the commander sent a motorcycle clutch at a speed of 70 km/h. How long before the motorcycle clutch reaches the column? - Van truck pursuit
Load. Car. ... .8.30 45 km/h delivery. ... . ..9.00 75 km/h At what time and distance did the van catch up with the truck? WORD PROBLEM ON MOVEMENT. - Fruit salad
The fruit salad is prepared from oranges and bananas. One kilogram of oranges costs 30 CZK, and one kilogram of bananas costs 18 CZK. How many kilograms of bananas need to be added to half a kilogram of oranges to produce a fruit salad worth CZK 21 per 1 - Where and when
The truck left Kremnica at 11:00 h at a speed of 60 km/h. At 12:30 h, the passenger car started at an average 80 km/h speed. How many kilometers from Kremnica will the passenger car reach the truck, and when? - Positional energy
What velocity in km/h must a body weighing 60 kg have for its kinetic energy to be the same as its positional energy at the height of 50 m? - Cyclist Motorcyclist Meeting Time
The distance from point A to point B is 40 km. And a cyclist left at 9:00 a.m. at a speed of 20 km/h. At 9:30 a.m., a motorcyclist drove against him from place B at 40 km/h. At what time and at what distance from A do they meet? - Cars Meeting Speed Difference
The distance between cities A and B is 125 km. Two cars start from these places at the same time. The difference in their speed was 3 km/h. They met in an hour. What was the speed of each car? - Train catch up
A freight train departs from one station at an average speed of 36 km/h. 2 hours later, personal pressure leaves in the same direction at an average speed of 48 km/h. After how many hours will the passenger train catch up with the freight train?
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