Basic operations and concepts - math word problems - page 20 of 324
Number of problems found: 6464
- The ratio 21
The ratio between the number of sides of two regular polygon is 1:2 and ratio of sum of their interior angles is 2:3. Find their number of sides. - Three ratios 2
What is the ratio of bases of two triangles when the ratio of their heights is 3:4 and the ratio of their areas is 4:3? - Joey had
Joey had 70% of his money in a savings account. The rest of his money was in a cheque account. (a). What percentage of his money was in his cheque account? (b). He had $240 in his cheque account. How much money did he have in his savings account? - A variable
A variable rectangle has a constant area of 35 cm². Find the lengths of the sides when the perimeter is minimum. - Overtime and salary
An employee earns R150 per hour, and the agreed normal working hours are 45 hours per week. Overtime is paid at 1 1/2 of the normal rate. Suppose Dave works 52 hrs during the first week of March. What will the total earnings for that particular week be? - The radius 2
The radius of a circle is increased by 5%. What is the percentage increase in their circumference area? - Incircle to circumcircle
Find the ratio of the areas of the incircle and the circumcircle of a square. - At 5:16
At 5:16, what is the acute angle between a minute hand and an hour hand? - Minimum interior angle
What is the minimum interior angle possible for a regular polygon? - Susan 5
Susan has a water tank in his back garden that can hold up to 750L in water. At the start of a rainy day (at 0:00) there is 165L in the tank, and after a heavy day’s rain (at 24:00) there is 201 L in the tank. Assuming that the rain fell consistently duri - At midnight The outside temperature at midnight was 3.4°C. The temperature then changed at a constant rate of -0.78°C per hour for 8 hours. What was the outside temperature at 8:00 AM?
- A function
A function follows the rule "y is 3 less than half of x". Express y as a function of x in the form of an equation. - Line equation:
Line equation: y-3=8/9(x-5) Solve for slope - Proportional relationship 3 Which table below shows a proportional relationship? A. x ; y 3; 12 4; 16 5; 20 6; 24 7; 28 B. x ; y 3; 15 4; 20 5; 25 6; 35 7; 40 C. x ; y 3; 24 4; 32 5; 45 6; 48 7; 56 D. x ; y 3 ; 21 4; 24 5; 35 6; 42 7; 49
- The co-ordinates
The co-ordinates of the point P dividing the line segment joining the points A (1,3) and B (4,6) internally in the ratio 2:1 are - Slope of the line What is the slope of the line passing through two points (-3,5) and (2, -1)?
- Temperature - linear function In the morning, at 08:00 hours, the temperature was -8°C, and in the afternoon, at 16:00 hours, the temperature was 24°C. Assuming that the temperature changes steadily, what was the temperature at 13:00 hours, and what was the time when the temperature w
- Error multiplication
In measuring the sides of a rectangle errors of 5% and 3% in excess are made. Find the error percent in the calculated area . - Human population The populations of two cities after t years can be modeled by -150t+50,000 and 50t+75,000. What is the difference in the populations of the towns when t=4?
- The linear The linear equation 5y-3x-4=0 Can be written in the form y=mx+c. Find the values of m and c.
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