Algebra - math word problems
Number of problems found: 2655
- Circle arc
Circle segment has a circumference of 135.26 dm and 2096.58 dm2 area. Calculate the radius of the circle and size of central angle.
- Geometric progression
Fill 4 numbers between 4 and -12500 to form geometric progression.
- Two doctors
Doctor A will determine the correct diagnosis with a probability 93% and doctor B with a probability 79%. Calculate probability of correct diagnosis if patient is diagnosed by both doctors.
Trapezoid garden has parallel sides 19 m and 24 m. Its area is 193.5 square meters. What is the width of the garden?
- Computer revolution
When we started playing with computers, the first processor, which I remember was the Intel 8080 from 1974, with the performance of 0.5 MIPS. Calculate how much percent a year rose CPU performance when Intel 486DX from 1992 has 54 MIPS. What wou
- Logarithmic equation
Solve equation: log33(3x + 21) = 0
- Ladislav in Amsterdam
Ladislav was reward and went to conference in Amsterdam. Conferense fee was € 3484. Calculate how many books Ladislav could buy at the price of 48 and 52 euros if he don't want fill whole home library and he can buy only 70 books?
Plane shape has a maximum area 677 mm2. Calculate its perimeter if perimeter is the smallest possible.
- Number ratio
Calculate two positive numbers that its ratio is 6:6 and difference was 0.
- Angles in triangle
The triangle is ratio of the angles β:γ = 6:8. Angle α is 40° greater than β. What are the size of angles of the triangle?
Rectangular playground is fenced with 38 m long netting. Its width is 7 m. Calculate its length.
Area of rectangle is 3002. Its length is 41 larger than the width. What are the dimensions of the rectangle?
- Square diagonal
Calculate the length of the square diagonal if the perimeter is 476 cm.
Lawyer got to pay 840 Euros in banknotes of 20 and 50 Eur. Total got 18 banknotes. How many was which?
- Chickens and rabbits
In the yard were chickens and rabbits. Together they had 40 heads and 106 legs. How many chickens and how many rabbits was in the yard?
Equilateral triangle with side 40 cm has the same perimeter as an isosceles triangle with arm of 45 cm. Calculate the base x of an isosceles triangle.
Calculate area of trapezoid ABCD with sides |AD|= 68 cm, |DC|=35 cm, |CB|=12 cm, |AB|=35 cm..
- Quadratic equation
Solve quadratic equation: 2x2-58x+396=0
- Two numbers
Find two numbers whose difference and ratio is 2.
The barrel is 199 litres of 38% acid. How many percent acid occurs when 61 litres revoke and replace it with the same amount of water?