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Answers
Answer:
Q.16 72
Step-by-step explanation:
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Answer:
Q.16 36 ÷ 0.2 = 180
Q.17 a) p = 6/5
b) m = 2
Step-by-step explanation:
In question 16,
We had to solve 36 ÷ 0.2
To solve this, we first shift the decimal to the right in both the numerals.
We get, 36 ÷ 0.2 = 360 ÷ 2 (note that 36 is also equal to 36.0)
Now that we have both the numerals as whole numbers, we can easily divide 360 by 2 and get the answer as 180..!!
In question 17 a),
We had to find the value of p in the given equation : -4 = 5(p - 2).
To keep it simple, let's make the equation 5(p - 2) = -4.
By transposition method,
- 5p -10 = -4 (solving the terms in the bracket by distributive property)
- 5p = - 4 + 10 (transposing -10 to RHS)
- 5p = 6
- p = 6/5 (transposing 5 to RHS)
In question 17 b),
We had to find the value of p in the given equation : 0 = 16 + 4(m-6).
Again, to keep it simple, let's make the equation 16 + 4(m-6) = 0.
By transposition method,
- 16 + 4m - 24 = 0 (solving the terms in the brackets by distributive property)
- 4m - 24 = 0 - 16
- 4m - 24 = -16
- 4m = -16 + 24
- 4m = 8
- m = 8/4
- m = 2