Math practice for 13 year olds - page 103 of 435
Number of problems found: 8682
- Divide line segment
Find the point P on line segment AB, such that |AP| = r |AB|. Coordinates of endpoints: A = (−2, 0, 1), B = (10, 8, 5), ratio r = 1/4. - Calculate 73024
Calculate the permille descent of the railway line in the section of 7.2 km by 21.6 m. - Calculate 72994
Calculate 50 per mille of 340. - Aluminum 72964
The aluminum disc has a diameter of 96 mm. 10 discs are cut from a sheet metal sheet 1 m long and 10 cm wide. What% is waste? - American stars
Some movie stars are very well paid. Actor Leonardo DiCaprio received a fee of 20 million US dollars for the main role in the film. In this film, which lasts 125 minutes, there is also a short scene in which DiCaprio takes 6 seconds to put on his boots. H - Cats and birds
There are 15 cats and birds in the park. There are 42 legs altogether. How many cats are there? - Relay 2
Marco Racer's best time in the 100-yard relay is 15 1/4 seconds. How many seconds would it take him to run 450 yards at the same rate?
- Magazine's 72894
Shop reduced the magazine price by as many percent as the euro cost the magazine before the price reduction. Find the original price if it costs 16 euros after the discount. - Unknown 72884
The square root of an unknown number equals the square of 2. What is the unknown number? - A chord
In a circle radius of 6 cm, a chord is drawn 3 cm from the center. Calculate the angle subtended by the chord at the center of the circle. Hence find the length of the minor arc cut off by the chord. - A man 6
A man wants to get the best deal on gasoline. He travels out of his way to buy a gallon of gas for $2.14, but he has to travel farther for that gas, or he could travel a shorter distance for a gas price of $2.26. If he put 15.7 gallons of gas, what is the - You want
You want to buy additional land in the shape of a rectangle with a width of 2,500 cm and a length of 0.065 km. If the price is Php 150,000/hectare, how much peso do you need to pay? - Which 10
Which will have greater momentum between a ten-wheeler truck weighing 7,000 kg and a bus that weighs 5,000kg if the bus is moving at 15 m/s while the truck is moving at 10 m/s? - Garden rent
The town of Bellmere has purchased a square plot of land that is 0.2 km by 0.2 km to make a community garden. If the garden is divided into plots that average 50 ㎡, how many plots will be available to rent? - A coffee
A coffee shop owner blends a gourmet brand of coffee with a cheaper brand. Gourmet coffee usually sells for R420,00 per kilogram, while the cheaper brand sells for R180,00 per kilogram. How much of each type should be mixed to have 30 kilograms of coffee
- Coffee 6
Coffee worth $1.05 per pound is mixed with coffee worth 85 cents per pound to obtain 20 pounds of a mixture worth 90 cents per pound. How many pounds of each type is used? - 5 times
Find an unknown number; if five times as large as 110 is 1/2 of what number? - Parking 72644
How many ways can ten cars park side by side in a parking lot? - Casserole 72634
The casserole with a volume of V = 4.5 l has a depth of h = 10 cm. Calculate its inside diameter. - Calculate 72624
The perimeter of the ABC triangle is 19.6 cm. The following applies to the lengths of its sides: a: c = 1:2, b: c = 5:6. Calculate the lengths of all sides of the triangle ABC.
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