Math practice for 13 year olds - page 142 of 414

Number of problems found: 8275

Discount
If someone gives you a discount on "X" at 5% for 60 days. Then the discounted amount is 80000. find the actual amount? Discounted Amount=80000 rate=5% Period=60 days Actual amount=?
The sales 2
The sales tax in your city is 8.8 percent, and an item costs 55 USD before tax. How much tax would you pay on that item?
Full tank
Jacob pumps a full tank into his motorcycle and leaves. On the way to the city, it consumes 11/16 tanks and back 3/5 of the rest. What percentage of the fuel will remain in the tank?
What is 14
What is (-2)⁴× 3⁴?
Sqrt between ints
Which two consecutive integers does the square root lie in? * √45 √23 √71 √7 √86
Two angles 2
Two angles of a triangle have the same measure, and the third is 45 degrees greater than each of the other two. Find the measure of the largest angle.
Two places
The actual distance between the two places is 105 km. Find the scale of the map on which this distance is marked by a line 1.2 dm long.
Map trip length
The tourist map has a scale of 1:40 000. Find the actual length of the trip, which is marked on the map by a 7 cm long line.
Sides in ratio
The sides of the triangle are in a ratio of 2:6:5. Find the dimensions of the remaining sides if the longest side is 32 cm.
Trapezoid and diagonals
Find the area of a trapezoid with bases a = 24 cm, c = 16 cm, and diagonals u = 22 cm, v = 26 cm.
The length 8
The length of a rectangular field is x + 4, and its width is x + 2. What is the area of the field? Answer in polynomials expressions.
Gale and spruce
A mighty gale broke the top of the fifteen-year spruce, resting it on the ground. The distance of this top from the trunk was 4.6 m below. At what height was the spruce trunk broken?
Train
Find the average speed of a train (in km/h) that passes a telegraph pole in 7 seconds and passes a 378 m platform in 25 seconds. How long is the train?
Two midpoints
Point A is on a number line halfway between -17 and 5. Point B is halfway between points A and 0. What integer does Point B represent?
Triangle land fencing
The land has the shape of an obtuse triangle with sides of 40 m, 30, and 60 m. Determine the minimum mesh length for fencing and the land area in ares.
Student commute percentage
There are 25 students in the class. Four students commute. How much percents is it? Please help quickly.
Goods price reduction
They reduced the goods by 15% from the original price of CZK 3,400. What is the new price?
Cube-shaped box
The cube-shaped box with a length of 20 dm is filled with sand. If 1 m³ of sand weighs 1.5 t, what is the weight of sand?
What is
What is the circumference of an isosceles trapezoid with an area of 106.75 cm²? The lengths of the sides are in the ratio of 1:3:2:1, and the bases are 6.1 cm apart.
Tractor
A car traveling at a speed of 70 km/h is overtaken by a tractor traveling at 25 km/h. The driver of the car needs a toilet and knows that it will take him 3 minutes. How many kilometers does the car have to cover, so the tractor does not overtake it?

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