Maths practice for 14 year olds - page 74 of 378
Number of problems found: 7560
- Cuboid's diagonal
The cuboid has a body diagonal u=25 cm, and side b is one-third longer than side a. What is the volume of the cuboid? - The point
The point which lies in the fourth quadrant is A.(2,1) B.(1,-3) C.( -5,-2) D. (-4,0) E. (0,0) - The midpoint 2
Find the value of x if M is the midpoint of PQ, PQ=10x−7, and PM=14. - Nicolette
Nicolette makes a small bead bracelet using five red, eight purple, and six green beads. A large necklace has the same ratio of beads as a small bracelet. If the large necklace requires 15 red beads, how many purple beads are needed to make a large bracel - A solution
A solution of salt and water has 15% salt by weight. From it, 30 kg evaporated, and the solution now contains 20% salt. Find the original quantity of the solution. - Angles in a triangle
In a triangle, the first angle measures a number plus 45°, and the second angle is 30° less than the first angle. The third angle is two times the number more than the first angle. What are the measurements of each angle of the triangle? - You buy
You buy two soft drinks and 24 toffees at the tuck shop. One soft drink costs six times as much as one toffee, so your total purchase cost is R54. Determine the cost of one toffee.
- I spent
I spent 3/8 of my money in one shop,1/4 in a second shop, and 1/8 in a third shop. I then had $5 left. How much did I start with? - Cows and pigs
There are 3/4 as many cows as pigs on an animal farm. If there are 35 pigs and cows on the farm, how many of them are pigs? - Big tree
You are standing 20 feet away from a tree, and you measure the elevation angle to be 38°. How tall is the tree? - Erica’s
Erica's bank account increased from $1,200.00 to $1,500.00. By what percent did the amount of money in her bank account increase? - Choose
Choose the three equivalent forms of 6.375. A. six and three-eighths, 6.375%, fifty-one eighths B. six and three seventy-fifths, 6.375%, thirty-seven sixths C. six and three seventy-fifths, 637.5%, thirty-seven sixths D. six and three-eighths, 637.5%, fif - RT a-b-x
There is a right triangle with legs long a, b, and hypotenuse long x. Given that a = 6 cm and b = 9 cm, work out x. Give your answer as an exact surd. - Garden tree
Anna is drawing a picture of her garden. A tree is 9 meters high, and she draws it as 13.5 cm tall in her drawing. If a flowering plant is 40 cm high in reality, how will Anna have to draw it to keep the proportion correct? - Garrett
Garrett and Jeffrey are planning a treasure hunt. They decide to place a treasure at a point that is a distance of 5 units from the x-axis and three units from the y-axis. Jeffrey places a treasure at point J at coordinates (5,3), and Garrett places one a
- Electricity 77094
The smaller bakery had a long-term contract and purchased one MWh of gas for 36 euros in 2021. After the contract expired, it had to switch to the current spot price and pay up to 196 euros for one MWh. By what percentage did the price of electricity for - Ordered pairs
Given: Set T = {(1,2), (2,3), (3,4), (4,5), (5,5), (6,7), (6,6), (7,8), (8,9), (9,9), (9, 10), (11,12), (12,13), (13,14), (15,16), (16,16), (17,18), (18,19), (20,21)} Find the probability of having an ordered pair wherein the second element is greater tha - Add number
Suppose the same number is added to the one near raider and denominator of math fractions seven and nine. The result is .9. What is the number? - A teacher 2
A teacher checked two sets of test papers. The first set took 3 3/4 hours. The second took 1 1/2 hours, and the third took 2 3/5 hours. How much faster did the teacher check the third set than the first and second? - One angle
One angle is 10 degrees more than four times the measure of the other angle. Together they have a sum of 120 degrees. What is the measure of each angle?
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