Math practice for 13 year olds - page 334 of 433
Number of problems found: 8660
- Together 3781
Milos would do the work himself in 5 hours. How much would it take Dan to do the job together in two hours? - Number 3780
25% of the number x equals 2-1. What is the value of x? - Determine 3779
Determine the perimeter of the rectangle if its length and width are 2:1 and the area is 98 cm². - The rectangle The length and width of a rectangle are in the ratio of 5:2. Its length is 7.5 cm longer than its width. Find the area of the rectangle. Determine also its length and its width.
- Unknown number x
5% from an unknown number equals the number 26. What is the unknown number? - Weightlifter
Weightlifter lifted 75% of its weight. Determine how much weight is lifted when he weighs 132 kg. - Shots
Determine the percentage rate of keeper interventions if 32 shots don't catch four shots.
- Determine 3769 12% of x is 58 more than (6²) +5. Determine x.
- Painting rooms
If Daniel paints for three hours daily, he completes it in 7.5 days. How many hours a day would he have to work to finish the job 1.5 days earlier? - Multiply 3766
Peter had a number in mind and said: When I divide this unknown number by the square root of 27 and then multiply by three, I get an unknown number. What number did Peter think? - Grass
Peter and Stano lawn grass for 3 hours 12 minutes. How long would it take for Peter if Stano lawn grasses himself for 384 minutes? - Discounting 3762
The price of the jacket was x €. The coat was first discounted by 12% and then increased in price by 4% of the discounted amount. After discounting and subsequent price increases, the jacket cost exactly 91 euros and 52 cents. Find the flood price of the - Expression: 3761
Specify the value of the expression: 1-4:2-3 - Runner
Peter ran at a speed of 12.4 km/h. After 45 minutes of running, he had a hiatus. The track is 31 km long. How many kilometers is he still to run if he still runs at the same speed? - Methodius 3758 Milan and Methodius are now 70 years old. Seven years ago, Milan was 1.8 times older than Methodius. Determine how old Milan is now and how many Metoděj is.
- Reduction 3757 The goods became cheaper twice a row, first by 18% and then by 16% of the new amount. After this double reduction, it cost precisely 516 euros and 60 cents. Determine the flood amount of the goods.
- Belgium vs Italy Belgium played a match with Italy and Belgium won by two goals. The match fell a total of 6 goals. Determine the number of goals scored by Belgium and Italy.
- Expression: 3754 Express the value of y in the expression: y / 9^(- 1) = 72
- Represents 3753
Dana and Julka's numbers are different. Dana's number represents the eleventh root of Julkin's number. The sum of their numbers is 2050. Determine what number Dana has and what Julka has. - Determine 3751
Determine the sum of the second and fifth AP members if a1 = -4.12, d = -0.7
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