Equations practice problems - page 177 of 251
Number of problems found: 5001
- Weight puzzle
A + B weighs 75 kg, B + C weighs 83 kg, C + D weighs 92 kg. How much does A + D weigh? - Rectangle
The length of one side of the rectangle is three times the length of the second side. What are the dimensions of the rectangle if its circumference is 96 cm? - Equation solving
a) 5 + 4x = 5x-22 b) 8y-49 = y-4 - Equation
Solve equation with unknown x: 3 (1/3 + 2x) -2 (1/3-3x) -13/2 = 0 - Angles ratio
The internal angles of a triangle are in ratio 1:4:5. What kind of triangle is it? (solve interior angles and write down and discuss) - Pond sluice
The first sluice empties a complete pond in 45 days. If 2/3 of the pond is drained in 15 days, a second sluice is still needed for ten days. How many days would it empty itself through just the second sluice? - Salt
Seawater contains 5% salt. How many kilograms of fresh water must be added to 40 kg of seawater so that the salinity drops to 2%? - Unknown number 23
Find 2/3 of the unknown number, which is two-thirds of the 99. - Express
Express the equation of the function: a/prices of cucumbers for the number of cucumbers sold, if one cucumber costs CZK 5 b/the area of the rectangle on side b, if side a measures 5 cm c/the perimeter of the rectangle on side b, if side a measures 5 cm d/ - Function domains
Specify function domains: a / y = 2x-1 b / y = 5x / (2x + 1) c / y = x² / (x²-9) - Trapezoid
How long are the trapezoid bases with an area of 24 cm² and a height of 3 cm? One base is three times longer than the shorter. - Cylinder surface
The area of the rotating cylinder shell is half the area of its surface. Calculate the surface of the cylinder if you know that the diagonal of the axial section is 5 cm. - Square diagonal
Calculate the diagonal of such a square, which holds that its area is equal to its perimeter (without considering units numerically ...). - Car travel
A passenger car traveling at a speed of 60 km/h arrived from place A to place B one and a half hours earlier than a truck traveling at 40 km/h. How far apart are placed A and B, and how long did the car travel? - Bags
The first bag weighs 18 kg, the second bag is one-third lighter than the first, and the third bag has one-third as much than the weight of all three bags. Determine their weights. - Savings
Paul's savings are 50% more than half of Stanley's, but equal to Rado's. Stanley saves 120 CZK less than Rado. What are the total savings of all three boys? - Bicycles
You're the owner of the transport's learning playground. Buy bicycles of two colors, but you've got to spend accurately 120000 CZK. The Blue bike costs 3600 CZK and the red bicycle 3200 CZK. - Family
A mother is 42 years old, and her daughters are 13 and 19. After how many years will the mother be as old as both her daughters combined? - Fraction equation Solve the equation: 1/c - 3/(2c) = 3/4
- Apple harvest
Pupils collected a total of 42 kg of apples. Peter harvests half as much as Susan and Martin, a third less than Peter. How much did each of them harvest?
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