algebra-help-solving-word-problems-on-system-of-equations-by-cross-multiplication-method

Algebra help | Solving Word Problems on system of Equations by Cross-Multiplication Method

Solving Word Problems on system of Linear Equations Cross-Multiplication Method

http://www.learncbse.in/ncert-class-10-math-solutions/

http://www.learncbse.in/pair-of-linear-equations-in-two-variables-cbse-extra-questions/

http://www.learncbse.in/rd-sharma-class-10-solutions-pair-of-linear-equations-in-two-variables/

Specific Objective:

Solving the pair of linear equations by cross multiplication method

Description: This task is designed to solve the pair of linear equations by cross multiplication

method.

Execution: Teacher will explain the procedure for solving pair of linear equations by cross

multiplication. Worksheets will then be distributed and students will solve the worksheets.

Teacher may conduct a class discussion for follow up.

Parameters for Assessment:

. Able to recognize the coefficients of the variables in both the equations.

. Able to apply the formula correctly depending upon the equations being ax+ by+ c=O or ax+ by=c.

. Able to do the cross multiplication correctly.

. Able to get the required solution.

00:02 Solving equations by cross-multiplication

02:15 Q4. Form the pair of linear equations in the following problems and find their solutions (if they exist) by any algebraic method :

03:10 (i) A part of monthly hostel charges is fixed and the remaining depends on the number of days one has taken food in the mess. When a student A takes food for 20 days she has to pay Rs 1000 as hostel charges whereas a student B, who takes food for 26 days, pays Rs 1180 as hostel charges. Find the fixed charges and the cost of food per day.

08:13 Algebraic Methods of Solving a Pair of Linear Equations : cross-multiplication

(ii) A fraction becomes 1/3 when 1 is subtracted from the numerator and it becomes 1/4 when 8 is added to its denominator. Find the fraction.

12:23 Solving the pair of linear equations by cross-multiplication method

(iii) Y ash scored 40 marks in a test, getting 3 marks for each right answer and losing 1 mark for each wrong answer. Had 4 marks been awarded for each correct answer and 2 marks been deducted for each incorrect answer, then Yash would have scored 50 marks. How many questions were there in the test?

17:02 Solve system of linear equations by cross-multiplication method

(iv) Places A and B are 100 km apart on a highway. One car starts from A and another from B at the same time. If the cars travel in the same direction at different speeds, they meet in 5 hours. If they travel towards each other, they meet in 1 hour. What are the speeds of the two cars?

Follow us:

On Twitter

https://twitter.com/cbseguesspapers

Linkedin

https://www.linkedin.com/profile/view?id=396397973&trk=nav_responsive_tab_profile

Pinterest

https://in.pinterest.com/LearnCBSE/

Facebook

https://www.facebook.com/cbseguesspapers

Youtube LearnCBSE.in

https://www.youtube.com/user/CBSEPapers

Wordpress

https://cbselabs.wordpress.com/

learncbse.in

CBSE solutions for class 10 maths Chapter 3 Pair of linear equations Exercise 3.4

CBSE class 10 maths NCERT Solutions Chapter 3 Pair of linear equations Ex 3.2

CBSE class 10 maths NCERT Solutions Chapter 3 Pair of linear equations

Solutions for CBSE class 10 Maths Pair of linear equations

NCERT solutions for class 10 maths Pair of linear equations

NCERT solutions for CBSE class 10 maths Pair of linear equations

graphical representation Graphical Method algebraical Method parallel coincident consistent, or inconsistent Algebraic Methods of Solving a Pair of Linear Equations Substitution Method

Elimination Method Cross - Multiplication Method

CBSE class 10 maths Solutions Pair of linear equations Exercise 3.5

Common core Math Pair of linear equations

ICSE Class 10 Pair of linear equations

Tagged under: ncert solutions,learncbse.,gyanpub,cross multiplication method examples,Solving pair linear equations,cross-multiplication,Solving Word Problems,Solve word problems Cross-multiplication method,Algebra Cross-multiplication method,Systems Linear Equations,Cross-multiplication method Solving pair linear equations

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.

Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

Discuss

Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!

Dr Ayla Göl
@iladylayla

A good tool for supporting active #learning.

The Team Up app is unlike anything I have ever seen. You left NOTHING out! So impressed!