Question

Number of matchsticks required to make a pattern of "U" 

• 3

• 4

• 5

The expression for the statement: '5 times the sum of x and y' 

• 5 + x + y

• 5 - x - y

• 5(x + y)

What is the method of finding the solution by trying out various values for the variable called?

• testing method

• checking method

• Trial and error method​

Answer 1

Answer:

1. 3

2. 5(x+y)

3. Trial and error method

Step-by-step explanation:

Hope it helps.

Answer 2

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i. a) 3

ii. c) 5(x + y)

iii. c) trial and error method

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