Forming and solving equations from descriptions

Forming and solving equations from descriptions

Lesson details

Key learning points

  1. In this lesson, we will form linear equations from worded descriptions, and then solve them.

Licence

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4 Questions

Q1.
Which equation can be formed from the diagram?
2c + 30 = 60
Correct answer: 2c + 90 = 180
c + 60 = c + 30
c + c + 30 + 60
Q2.
Work out the value of c.
c = 30
Correct answer: c = 45
c = 60
c = 90
Q3.
Which equation can be formed from the diagram?
5b + 22 = 2b + 51
7b + 73 = 180
Correct answer: 7b + 73 = 360
7b = 73
Q4.
What is the size of the largest angle?
133 degrees
Correct answer: 145 degrees
215 degrees
360 degrees
41 degrees
82 degrees
Others

5 Questions

Q1.
I think of a number. I times it by 5 and subtract 3. The answer is 17. Form an equation to show this.
5 - 3x = 17
5a - 17 = 3
Correct answer: 5a - 3 = 17
5a + 3 = 17
Q2.
What number was I thinking of in Question 1?
1
2
3
Correct answer: 4
5
Q3.
Zaki thinks of a number. He multiplies the number by 5. He then adds 3. His answer is 38. What number did Zaki think of?
3
4
5
6
Correct answer: 7
Q4.
Yasmin thinks of a number. She multiplies it by 2. She then subtracts 15. She then divides the result by 4. Her answer is 2.5. What number did Yasmin think of?
10
Correct answer: 12.5
25
5
Q5.
2 bottles and 2 corks cost £4.20. A bottle is £0.80 more expensive than a cork. How much does a bottle cost?
£0.65
Correct answer: £1.45
£2.10
£3.40

Lesson appears in

UnitMaths / Forming and solving equations