Solving quadratic equation word problems
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You get the quadratic equation. The entire trip up and back takes 7. But finally, the mighty king decides to visit one of the more beautiful castles in his kingdom for the umteenth time. A boat can cover 10 km up the stream and 5 km down the stream in 6 hours. Apply the quadratic formula see the lesson to solve this equation.

On solving quadratic equations see also the lessons - - - - - - - - - - in this site. X is equal to 3 and -15, just like before. Since they can cover the entire roof in 6 days working together, the equation for the unknown value is as follows:. Motorboat moving upstream and downstream on a river A motorboat makes a round trip on a river 56 miles upstream and 56 miles downstream, maintaining the constant speed 15 miles per hour relative to the water. Problem 3 : Two squares have sides p cm and p + 5 cm. Find the number of girls present in the Sports Meet. The smaller tube fills the reservoir in 36 hours.

The length of the longer leg is 7 feet more than the lenth of the shorter leg. The measurements of the carpet are equal to -6 and -12. To simplify the equation, multiply both sides by and collect the common terms. One must note though that these problems often look for concrete answers, like units of measurement or quantity. Write the equation that you are trying to solve. X has two possible solutions, 3 and negative 15.

Plot the points and then draw in the parabola. How much carpet do they need? What is the boat's speed and how long was the upstream journey? The length of a hypotenuse of a right triangle is 2 feet more than the longer leg. This article has also been viewed 3,315 times. What a narcissist but whatever, right?! He'll go to a village near the border of his kingdom. Quadratic equations can be in many forms.

So the correct solution is 'x' is equal to 3. Let us make some equations! Solve the equation by factoring. Note: You can find exactly where the top point is! And many questions involving time, distance and speed need quadratic equations. Problem 4If a beet-sugar factory in England processed 2000 tons less of beets per day, it would take 1 day longer to slice 60,000 tons of them. Now you want to make lots of them and sell them for profit.

Worksheet on Word Problems on Quadratic Equations - Solution Problem 1 : The area of a rectangular field is 2000 sq. Click on the 'Free' icons to sample our work. In this way you get , , , ,. Luckily for the king, his squire knows all about the village's unusual customs, the villagers always give an enthusiastic welcome to visitors. Since , this solution is correct. How long will it take to fill the reservoir using the smaller tube only? You have to respect peoples' customs, right? Then the other part is 25 - x. This compilation of a meticulously drafted equation word problems is designed to get students to write and solve a variety of one-step, two-step and multi-step equations that involve integers, fractions, and decimals.

Plug in 'x' is equal to 3. The difference between its other two sides is 4 cm. We will discuss here how to solve the word problems using quadratic formula. Find the length of the sides. When the King gets to the village, the villagers seem normal enough. If the quadratic equation is factorable, then factoring, of course, and completing the square are good choices. Solution Let be number of hours to fill the reservoir using the smaller tube only.

The sum of their squares is 625 sq. In this article, you will learn how to solve those types of problems. Thus, in one single hour the smaller tube will fill part of the reservoir volume, while the larger tube will fill part of the reservoir volume in each single hour. Okay back to the problem. Only one answer out of two will be realistic if the problem asks for both the variables, you have to give two answers. Find the length of the sides.

A negative root, though a valid solution to a quadratic equation, may not be the answer that a word problem is looking for. Example: New Sports Bike You have designed a new style of sports bicycle! You can solve a quadratic equations using the quadratic formula or factoring. Hence the required number is 16. Apply the quadratic formula see the lesson to solve this equation. Find how long it took the rock to hit the surface of the water.

Hence, the length of each side of the equilateral triangle is 17 units. Use the quadratic formula to solve the equation. The pilot wants to know how long it will take for the package to hit the ground. Since , this solution is correct. So, the given height can be considered as length of the rectangle Given : Area after enlargement is 192 sq. Solution: Let the number of girls in the front row when arranged in a hollow square be x.