Expression of a variable from the formula + ratio - practice problems
Number of problems found: 275
- Angle of inclination
Find the angle of inclination of a ramp that rise for 80 cm and is 200 cm long. - The length 20
The length and breadth of a rectangular park are in the ratio 8:5. A path,1.5 m wide, running all around the outside of the park has an area of 594 sq m. Find the dimensions of the park. - Four numbers 3
What least number must be added to each of the numbers 6,15,20 and 43 to make them proportional? - Three inscribed objects
A circle is inscribed in a square. An equilateral triangle of side 4√3 is inscribed in that circle. Find the length of the diagonal of the square.
- Antecedent and consequent
In a ratio which is equal to 5:8, if the antecedent is 40, then find the consequent. - Direct proportional If m is proportional to n and m=5 when n=4, then what is the value of m when n=18?
- Binary series
The 4th term of a G.P. is 16 and the 7th term is 128 . Find the first term and common ratio of the series. - My grandfather
My grandfather was 8 times older to me 16 years ago. He would be 3 times of my age 8 years from now. What was the ratio of our ages 8 years ago? - Two trains 11
Two trains running in opposite direction cross a man standing on the platform in 27 seconds and 17 seconds and they cross each other in 23 seconds. Find the ratio of their speeds.
- The speeds
The speeds of three cars are in the ratio 2:3:4. What is the ratio of the times taken by these cars to travel the same distance? - The average 15 The average age of a group of four men whose ages are in the ratio of 2:3:4:5 is 42 years, what is the age of the eldest person of this group?
- 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? - Two numbers at a ratio
If 1.5x = 0.04y, then find the value of {(y - x)/(y + x)}. - The proportion The proportion's first, second, and third terms are 4, 20, and 13. Find the fourth term.
- Orange juice
Water and orange are mixed in a ratio of 7:4. An amount of 36 cm³ of orange is used. What volume of water is used? - The balance 2
If your balance at the end of 4 years is 50000, at a 5% interest rate, What was your original investment? - Apothem
Find the ratio between the two perimeters, the two areas, and two corresponding apothems of two regular hexagons whose sides are 2-3/4 inches and 4-1/8 inches. - Yiguo
There were an equal number of carrots, tomatoes, and cabbage in the pantry. Yiguo used 49 carrots som, some tomatoes, and some cabbages. There were 3 times as many tomatoes as cabbages left. Sixteen fewer carrots than tomatoes were left. There were 117 ca - The 8th
The 8th term of GP is greater than the 5th term, and the 10th term is 10 times the 2nd term find: 1) the common ratio 2) 20th term
Solve the equation with two ratios: x:14=28:196Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
