Maths practice for 14 year olds - page 28 of 312
Number of problems found: 6236
- Trinity 2
Trinity has saved $500 for a new car. She recently got a job as a dog walker and added $70. What percent of her original savings got added?
- For triangle
For triangle XYZ, ∠X = (6g + 14)° and the exterior angle to ∠X measures (5g + 45)°. Find the measure of ∠X and its exterior angle.
- The perimeter 10
The perimeter of a rectangle is 162 inches. The length is 35 inches longer than the width. Find the length and width of the rectangle.
- The sum 31
The sum of two fractions is 13 3/4. Their difference is 8 1/5. What are fractions?
- The sum 30
The sum of 8 times a number and 5 times another number is 184. The first number minus the second number is -3. What are the numbers?
- Percent down
$165.00 is what percentage less than $247.50?
- Length and width
The length of a rectangle is 7 cm more than the width. Find the width and length if the perimeter of the rectangle is 78 cm.
- Coffee factory
In a factory, 10 kg of coffee is produced in a half day. The factory is in operation nonstop for 6 1/2 days a week. Find the total amount of coffee produced in a week.
- The revenue
The revenue of Dr. Alban Bookstore increased from 1 500 000 pesos (in 2018) to 2 275 000 pesos (in 2019). What was the percent increase in the yearly revenue from 2018 to 2019?
- Percent base
75% of 40 is 30. What is the base?
- Percent decrease
77 to 59. Find the percent decrease.
- Price 11
The price increased from $2.56 to $3.76. What is the percentage increase?
- A triangle 7
A triangle lot has the dimensions a=15m, b=10m, and c=20m. What is the measure of the angle between the sides of b and c?
- Slope of line
What is the slope of the line that passes through the points: (-2, 4) and (-3, 1)?
- Calculate 449
Calculate the size of the angle formed by 2 lines on the dial and formed by connecting the points 7.2 and 1.4.
- Daniel 3
Daniel and Eva earned 180 euros together. Daniel earned 70 euros more than Eva. How much did Daniel earn, and how much did Eva earn?
- Construct 22
Construct a rhombus ABCD if the diagonals are f=7cm, e=5 cm.
- The tower
From a window 8 m above the horizontal plane, we can see the top of the tower at an elevation angle of 53 degrees 20 minutes, and its base at an angle of 14 degrees 15 minutes. How high is the tower?
- Birthday boy 2
In how many ways can seven people be seated around a table so that the birthday boy sits at the head?
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