Average of 7 numbers is 65. What is its sum?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
The arithmetic mean of the two numbers is 71.7. One number is 5. Calculate the second number.
- Median and modus
Radka made 50 throws with a dice. The table saw fit individual dice's wall frequency: Wall Number: 1 2 3 4 5 6 frequency: 8 7 5 11 6 13 Calculate the modus and median of the wall numbers that Radka fell.
- The square
The square root of 25 times the square root of 81 is what number?
- Watching TV
One evening 2/3 students watch TV. Of those students, 3/8 watched a reality show. Of the students that watched the show, 1/4 of them recorded it. What fraction of the students watched and recorded reality tv.
Which number is 17 times larger than the number 6?
Sick Marcel already taken six tablets, which was a quarter of the total number of pills in the pack. How many pills were in the pack?
In 7.C clss are 10 girls and 20 boys. Yesterday was missing 20% of girls and 50% boys. What percentage of students missing?
Find all multiples of 10 that are larger than 136 and smaller than 214.
Mom every day buys 6 rolls. On Friday buys 2 times as much. How many rolls buys on Friday?
- Coal mine
The monthly plan of 17,000 tons of coal exceeded the mine by 1/25. How many tonnes of coal have been harvested from the mine above plan?
- Pins 2
how many different possible 4 digits pins can be found on the 10-digit keypad?
- Classroom 4
In a class of 36 pupils, 2/3 are girls. How much it is in a class girls and boys?
- 75th percentile (quartille Q3)
Find 75th percentile for 30,42,42,46,46,46,50,50,54
- Seeds 2
How many seeds germinated from 1000 pcs, when 23% no emergence?
- Obtuse angle
Which obtuse angle is creating clocks at 17:00?
The bicycle pedal gear has 36 teeth, the rear gear wheel has 10 teeth. How many times turns rear wheel, when pedal wheel turns 120x?
- Simple equation
Solve for x: 3(x + 2) = x - 18