Mean - math word problems - page 23 of 35
Number of problems found: 696
- Life expectancy
The life expectancy of batteries has a normal distribution with a mean of 350 minutes and a standard deviation of 10 minutes. What is the range in minutes 68% of the batteries will last? What is the range in minutes? How long will approximately 99.7% of b - Opportunities 8372
There are 20 students in the class, four of them are being tested by the teacher. How many options are there to choose who the teacher will test? - Big family
A certain number of people met at the family celebration - their average age was three times the number present. Then came my grandfather, who was 75 years old, and the average age was again three times the number present. How many people are celebrating - Triangle 8320
Is there a triangle with heights of 4, 7, and 10 meters?
- Sphere floating
Will a hollow iron ball float with an outer diameter of d1 = 20cm and an inside diameter of d2 = 19cm in the water? The iron density is 7.8 g/cm³. (Instructions: Calculate the average sphere density and compare it with the water density. ) - Bonuses
Five company employees were paid bonuses, so each successor received 550 USD less than the previous employee. If a total of USD 11,000 was paid, how much did everyone get? - Reading records
Lucy, Tereza, and Petra decided to compile the compulsory reading records together. It would take 30 days for Lucia alone, 36 for Tereza, and 45 for Petra. How long will it take to make records if they will work together? - Uphill and downhill
The cyclist moves uphill at a constant speed of v1 = 10 km/h. When he reaches the top of the hill, he turns and passes the same track downhill at a speed of v2 = 40 km/h. What is the average speed of a cyclist? - Temperature change
The mean temperature change is -3.2°F per day for five days. What is the total change over the five days?
- Four pavers
Four pavers would pave the square in 18 days. How many pavers do you need to add to the done work in 12 days? - Centroid - two bodies
A body is composed of a 0.8 m long bar and a sphere with a radius of 0.1m attached so that its center lies on the longitudinal axis of the bar. Both bodies are of the same uniform material. The sphere is twice as heavy as the bar. Find the center of gravi - Athletic competition
In a 400-meter athletic competition, a participant covers the distance given below. Find the average speed. first 80 meters 10 m/s next 240 meters 7.5 m/s last 80 meters 10 m/s - Carpenters
Carpenters 1 and 2 spend ten days and five days, respectively, to make one table. The first carpenter and 30 made 50 tables by the second. What is the average time spent on the products? - Minutes 8081
I will drain the whole tub in 4 minutes. How long would it take to drain it if I added two more drain holes?
- Midpoint of the line segment
Length of lines MG = 7x-15 and FG = 33 Point M is the midpoint of FG. Find the unknown x. - Midpoint 6 For line segment length is given: FM=8a+1, FG=42. Point M is the midpoint of FG. Find unknown a.
- Find midpoint
FM=5y+13, MG=5-3y, FG=? M is the midpoint of FG. Use the given information to find the missing measure or value. - Ten cashiers
Ten cashiers are open at Tesco. Customers wait an average of 15 minutes. How many other cashiers have to open to reduce the waiting time by 4 minutes? - Kilograms of sugar
When weighing twenty-kilogram bags of sugar, we found the following values in kg: 1.00; 1.01; 1.05; 0.99; 1.00; 0.98; 0.99; 1.04; 1.06; 0.93; 1.00; 1.03; 0.97; 1.00; 0.99; 1.05; 1.01; 0.94; 1.00 Compile the honesty table to find the mean, mode, and median
Ondra digs the bed in 20 minutes, Cuba in 30 minutes. How long do they dig together?Do you have unsolved problem that you need help? Ask a question, and we will try to solve it. Solving math problems.
