The train passes part of the line for 95 minutes at speed 75 km/h. What speed would have to go in order to shorten the driving time of 20 minutes?
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:
- Neighbor angle
For 136° angle calculate size of adjacent angle on one side of a straight line.
9 trees in 5 lines grows in the orchard. How many trees are in the orchard?
- Monthly payments
Novákovi pay for electricity and monthly pays at the end of the year still bill 34 USD. Total per year pay 618 USD. What were their monthly payments?
- Number unknown
Adela thought the two-digit number, she added it to its ten times and got 407. What number does she think?
The median of the triangle LMN is away from vertex N 84 cm. Calculate the length of the median, which start at N.
Find the common ratio of the sequence -3, -1.5, -0.75, -0.375, -0.1875. Ratio write as decimal number rounded to tenth.
- The result
How many times I decrease the number 1144 to get the result 22?
- Roman numerals 2+
Add up the number writtens in Roman numerals. Write the results as a roman numbers.
In the city operates 171 doctors. The city has 128934 citizens. How many citizens are per one doctor?
Compare with characters >, <, =: 85.57 ? 80.83
Result of the product of the numbers 1, 2, 3, 1, 2, 0 is:
- Roman numerals 2-
Subtract up the number writtens in Roman numerals. Write the results as a roman numbers.
- Roman numerals +
Add up the number writtens in Roman numerals. Write the results as a decimal number.
Prove whether you can construct a triangle ABC, if a=9 cm, b=10 cm, c=4 cm.
- To thousands
Round to thousands following numbers:
- Addition of Roman numbers
Added together and write as decimal number: XXXIV + MDCCXII
- Roman numerals
Write numbers written in Roman numerals as decimal.