Average
The arithmetic mean of the two numbers is 71.7. One number is 5. Calculate the second number.
Result
Result
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:
- Arithmetic average
The arithmetic mean of the five numbers is exactly 8. The sum of these four numbers is 30. What is the fifth number? - Average
Average of 7 numbers is 65. What is its sum? - Average
If the average(arithmetic mean) of three numbers x,y,z is 50. What is the average of there numbers (3x +10), (3y +10), (3z+10) ? - Classs mean
Class size is 30 students, math was not worse than sign 2. Determine the number of pupils who were sign 1 if the class had a 1.4 sign average. - Combine / add term
Combine like terms 4c+c-7c - 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. - 75th percentile (quartille Q3)
Find 75th percentile for 30,42,42,46,46,46,50,50,54 - Hotel
The hotel has a p floors each floor has i rooms from which the third are single and the others are double. Represents the number of beds in hotel. - Truncated cone
Calculate the volume of a truncated cone with base radiuses r1=13 cm, r2 = 10 cm and height v = 8 cm. - Simple equation
Solve for x: 3(x + 2) = x - 18 - Bicycle
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? - Obtuse angle
Which obtuse angle is creating clocks at 17:00? - Class
In 7.C clss are 10 girls and 20 boys. Yesterday was missing 20% of girls and 50% boys. What percentage of students missing? - Iron
Iron ore contains 57% iron. How much ore is needed to produce 20 tons of iron? - Seeds 2
How many seeds germinated from 1000 pcs, when 23% no emergence? - Energy saving
They were released three different, independent inventions saving 12%, 15% and 25% energy. Some considered that while the use of these inventions, the total savings will be 12% + 15% + 25% = 52%. Is this true? How much percent of energy will save all thre - Class
In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class?
The arithmetic mean of the five numbers is exactly 8. The sum of these four numbers is 30. What is the fifth number?
Average of 7 numbers is 65. What is its sum?
If the average(arithmetic mean) of three numbers x,y,z is 50. What is the average of there numbers (3x +10), (3y +10), (3z+10) ?
Class size is 30 students, math was not worse than sign 2. Determine the number of pupils who were sign 1 if the class had a 1.4 sign average.
Combine like terms 4c+c-7c
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.
Find 75th percentile for 30,42,42,46,46,46,50,50,54
The hotel has a p floors each floor has i rooms from which the third are single and the others are double. Represents the number of beds in hotel.
Calculate the volume of a truncated cone with base radiuses r1=13 cm, r2 = 10 cm and height v = 8 cm.
Solve for x: 3(x + 2) = x - 18
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?
Which obtuse angle is creating clocks at 17:00?
In 7.C clss are 10 girls and 20 boys. Yesterday was missing 20% of girls and 50% boys. What percentage of students missing?
Iron ore contains 57% iron. How much ore is needed to produce 20 tons of iron?
How many seeds germinated from 1000 pcs, when 23% no emergence?
They were released three different, independent inventions saving 12%, 15% and 25% energy. Some considered that while the use of these inventions, the total savings will be 12% + 15% + 25% = 52%. Is this true? How much percent of energy will save all thre
In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class?