JAMB - Mathematics (2005 - No. 10)
If m = 3, p = -3, q = 7 and r = \(\frac{5}{2}\), evaluate m(p+q+r)
19.50
19.15
18.95
18.05
Explanation
m = 3, p = -3, q = 7 and r = \(\frac{5}{2}\)
m(p+q+r) = 3(-3 + 7 + \(\frac{5}{2}\))
= 3(4 + \(\frac{5}{2}\))
= 3(4 + 2\(\frac{1}{2}\))
= 3 * 6\(\frac{1}{2}\)
= 3 * \(13}{2}\)
= \(\frac{39}{2}\)
= 19.50
m(p+q+r) = 3(-3 + 7 + \(\frac{5}{2}\))
= 3(4 + \(\frac{5}{2}\))
= 3(4 + 2\(\frac{1}{2}\))
= 3 * 6\(\frac{1}{2}\)
= 3 * \(13}{2}\)
= \(\frac{39}{2}\)
= 19.50
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