Equations practice problems - page 220 of 242
Number of problems found: 4827
- Internal angles
One internal angle of the triangle JAR is 25 degrees. The difference is the size of the two others is 15°. Identify the size of these angles. - Manager gold
I paid 40% of my salary for gold dental floss, that is, twice as much as for fine catering. Hawaiian shirts cost me 1/6 and 10 percent of my salary went to jet fuel. I still have 400 euros left for coffee. How much did I earn as a manager? - Aunt
Annie's aunt is 35 years old, and Annie is 14 years. For how many years will aunt have twice as many years as Annie? - Invitations
For every 5 minutes, writes Dana had ten invitations, while Anna had 14 invitations. How long will write together 120 invitations? - Clock hands
The hands-on clock shows the time as 12 hours and 2 minutes. Three hours later, calculate the size of an acute angle between the clock hands. - Equation
Solve the equation with one unknown and brackets: -3(2-x)-x=2(3x+1)+2x - Solutions
How much is the 60% solution, and how much 35% solution needed to create 100 l of the 40% solution? - Angles in ratio
The size of the angles of the triangle is in ratio x: y = 7:5, and the angle z is 42° lower than the angle y. Find the size of the angles x, y, and z. - Angles of the triangle
ABC is a triangle. The size of the angles alpha and beta are in a ratio of 4:7. The angle gamma is greater than the angle alpha by a quarter of a straight angle. Determine the angles of the triangle ABC. - Medians in triangle
The median of the isosceles triangle is 3 cm long. If its perimeter is 16 cm, determine the size of its sides. - Painters
One painter could paint a school for seven days. The second one does it for six days. It was necessary to paint the school in two days. The next painter was invited, and all worked together. How long would this painter paint the school itself? - Parallelogram
The parallelogram has side lengths in the ratio of 3:4 and a perimeter of 2.8 meters. Determine the sides' lengths. - The farmer
The farmer harvested 840 tons of grain in 2006, 44% less than in 2005 and one-fifth more than in 2004. How many tons of grain were harvested in the years 2005 and 2004? - Annie
Annie had a few cents in her wallet. She bought three buns for 9 cents. Now she has 51 cents in the wallet. How many cents previously Annie had in the wallet? - Seven tractors
Seven tractors plowed 308 ha field in four days. How many hectares of fields will plow nine tractors in 3 days at the same power? - 3d vector component
The vector u = (3.9, u3), and the length of the vector u is 12. What is, is u3? - Painting
Joseph and Fero painted the bench for four hours. If four friends helped him, how many hours would it take him to work? - Painters
Fifteen painters painted the fence for 280 minutes. For how many minutes, paint half of this fence with 12 painters? - Mukls
The six workers' working group would order jobs completed within 21 working days. How many workers must be added to complete a contract in 14 working days? - Wood
Peter chops wood. If they cut down a half hour a day, he would finish work in nine days. But Peter needs to finish work three days earlier. How many minutes should they cut down a day?
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