Unknown number xyz
Find the number that its triple is 24. Solve by equation.
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:
- Number unknown
Adela thought the two-digit number, she added it to its ten times and got 407. What number does she think?
- I think
I think a number. When I multiply it by five, and after that I subtract 477, I get the same number as if I multiplied it twice. What number do I think?
- Dividing by five and ten
Number 5040 divide by the number 5 and by number 10: a = 5040: 5 b = 5040: 10
A line of print on a computer contains 64 characters (letters, spacers or other chars). Find how many characters there are in 7 lines.
Fedor stood in the small pool. Above the surface was a part of his body that was twice as long as part of his body underwater. What height does Fedor have, if his body part below the surface is 5 dm long?
Jitka read on holidays book that has 180 pages. In the first week read 45 pages. In the second week she read 15 pages more than the first week. How many pages left to read it yet?
The rooms in the mountain hotel are double and triple. Double rooms are 25 and triple are 17 more. How many rooms are there in this hotel?
Solve equation: 4(a-3)=3(2a-5)
- Jan and Dan
Jan and Dan had the same money. Jan bought 5 workbooks and left him 15 CZK. Dan 6 and left him nothing. How much money have in total?
- If-then equation
If 5x - 17 = -x + 7, then x =
- School marks
Boris has a total of 22 marks. Ones have 3 times less than threes. There are two twos. How many has ones and threes?
- Tulips and daffodils
Farm cultivated tulips and 211 units on 50 units more daffodils. How many spring flowers grown together?
Friday 13th is in 4 days. What day is today and what day it is?
There are 28 bunches, and son ate 1/2, dad ate four bunches. How many of them remain on the baking dishes?
Majka gave from her collection of calendars Hanke 15 calendars, Julke 6 calendars and Petke 10 calendars. Still remains 77 calendars. How many calendars had Majka in her collection at the beginning?
- Postal stamps
Jano and Peter exchanged postal stamps. Jano gave Peter 32 stamps of the missile for 8 stamps with turtles. How good was Jano after this exchange (how many he has surplus in exchanged stamps)?
- Mom and dad
Mom wants talk with dad 3 hours. But dad wants of 2 times more hours than mom ... How many hours wants dad talk with mom? ...