Grade - math word problems - page 807 of 968
Number of problems found: 19341
- Expression calculation
Calculate the value of the expression x / y if you know that (-4x + 3y) / y = 5 - Sum probability
We have natural numbers 3, 4, 6, 10, and 12. Calculate the probability that the sum of three randomly selected three different numbers is less than 20. - Above Earth
To what height must a boy be raised above the earth to see one-fifth of its surface? - Number power
We have a number. If we divide its fourth power by its square, we get the number 0.25. Find this number. - Total potatoes
2/5 q of potatoes were sold in the first hour, 5/6 q in the second hour, and 40 kg in the third hour. How many kilograms of potatoes were in total? - Inverse function
Perform the inverse function from f: y = 4x + 5. - Water height
The bottom is 25 m wide and 10 m long, and there is 37640 hl of water. What height does the water reach? - Cheese proportion
Mom makes sheep's cheese and cow cheese spread in a 5:3 ratio for two children. What proportion do they have to mix sheep cheese and cow cheese if they make the same spread in the school cafeteria for 350 children? - Tank capacity
We filled the water tank from 3/5 of its volume. After releasing 21 hl, only 1/4 of the entire volume remained. How many hectoliters of water can the tank hold? - Ratio simplification
Adjust to basic shape: a) 3kg 40g b) 0.9:1.8 - Airplane
An aviator can see a part of the Earth's surface with an area of 200,000 km². How high is he flying? - Geometric sequence
A1 + a3 = 15 a1 + a2 + a3 = 21 Calculate a1 and q (quotient of the geometric sequence). - Football tickets
In two days, they sold 12,600 tickets for the football match. They sold 80% of what they did the next day on the first day. How many tickets were sold on the first day, and how many on the second day? - Water tank
The water tank has a cylindrical shape with a base diameter of 4.2 m and is 80 cm deep. How many minutes will it take to fill it 10 cm below the edge of the tank if water flows 2 liters per second? - Water reservoir
The reservoir shape of a cylinder has a diameter of 8 m and a height of 2.8 m. The device indicates that the reservoir contains 800 hectoliters of water. Calculate how much % of the volume is used. - Variance value
What is the value of the variance of the data in the file if the calculated standard deviation = 2? a) Dispersion = 6 b) Dispersion = 4 c) Dispersion = 9 d) Dispersion = 2 - Alcohol mixture
We have to produce 0.2 kg of 60% alcohol from 55% and 80% alcohol. How many of them do we use in the solution? - Alcohol mixing How much 55% alcohol do we need to add to 1500 grams of 80% alcohol to produce 60% alcohol? How much is 60% of alcohol produced?
- Group combinations
The group has 12 red girls and 25 blue girls in costumes. How many of them can we put together a group of 6 girls so that the four girls have red outfits? - Price increase
A 20 percent price increase meant a 90-crown raise. How much cost a product after?
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