Math practice for 13 year olds - page 120 of 428
Number of problems found: 8556
- Housing loan interest
How big would the Novak family take out a housing loan if they paid an interest of 5500 euros after the first year and the interest rate of this loan was 5.5% p. and.? - Quadrilateral prism
Calculate the surface and volume of a quadrilateral prism if given: the area of the base is 40 cm square, the bottom of the base is k = 8 cm, and the height of the prism is 1.3 dm (the bottom is a rectangle) - Line ratio enlargement
We will enlarge the line 8 cm long in the ratio of 7:4. How long in centimeters will the new line be? - Basketball team
The average height of the basketball team's primary five players is 196 cm. The underscore player is 216 cm tall. What is the average height of the remaining four players in centimeters? - Hexagonal prism volume
Calculate the volume and surface of a regular hexagonal prism with a height v = 2cm and a base edge a = 8cm. - Sandwiches
In a cafeteria, 1/6 of the students eat salads, and 2/3 eat sandwiches. There are 18 students in the cafeteria. How many students are eating lunches other than salads or sandwiches? - Expression value substitution
Specify the value of the expression, (3x-5) / (2x + 1) if x equals the value that will be in the reader after substitution. - Pool filling time
How long in an hour will a 30m, 15m, and 2m pool be filled with water flowing at 900l / min if it is 90% full? - Number logical sequence
The numbers are arranged in a specific logical order. Fill in the missing numbers. 5, 8, 16, 15, 18, 36, 35, 38,??, - Mr. Bradshaw
Mr. Bradshaw is leaning a ladder against the side of his house to repair the roof. The top of the ladder reaches the roof, which is 5 meters high. The ladder's base is 1 meter away from the house, where Mr. Bradshaw's son is holding it steady. How long is - For last
Last week, the temperature varied a total of 17 degrees over the day. If the high for the day was 10 degrees, what was the low for the day (write a number sentence and solve it. ) - Starter current flow
Determine the current flowing through the car's starter, whose resistance is 60 milliohms at 12V. - Resistor series connection
Two resistors with resistances of 40 ohms and 60 ohms are connected in series and connected to a voltage of 150V. A) the total resistance B) current in the circuit C) voltage on both resistors - Handset voltage resistance
The handset has a resistance of 4000 ohms. Calculate what voltage is connected to them if the current passes 2.5mA. - Shoe discount price
They reduced the shoes by CZK 132 to 85% of the original price. How much did they cost before the discount? - Class boy girl ratio
In the 9th grade, the ratio of boys to girls is 1:3. There are a total of 24 students in the class. How many boys and how many girls? - Apple seller households
The door-to-door seller of domestic apples sold 40% of the apples in the first household, 20% of the rest in the second, and 24kg in the third. How many kilograms of apples did the seller sell to the first two households together? - Chickpea can comparison
The grocery store has chickpeas in brine from two manufacturers, A and B. On a can from one manufacturer, it says: Solids weigh 240g, weighing 400g. The other manufacturer states: weight solid 245g, weight 410g. Which manufacturer sells canned food with a - TV discount price
The TV fell first by 20%, then by 10%. How much did it cost after the second discount if: A) before the first discount cost 450eur? B) after the first discount, cost 450eur? - Potato price reduction
Mr. Josef sold home-grown potatoes at 79 cents per kilogram. When he had the last 5 kg, he told the customer: collect them all for 3 euros! By what percentage did Mr. Josef reduce the potatoes?
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