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1 answer:
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one way is to factor the expressions
(a)
(1.2 + (5.35 ×
))
= (1.2 + 53.5)
= 54.7 × = 5.47 ×
×
= 5.47 ×
(b)
((6.91 ×
) + 2.4)
= (69.1 + 2.4)
= 71.5 × = 7.15 ×
×
= 7.15 ×
(c)
((9.7 ×
) + 8.3)
= (97 + 8.3)
= 105.3 × = 1.053 ×
×
= 1.053 ×
(d)
((3.67 ×
) - 1.6)
= (36.7 - 1.6)
= 35.1 × = 3.51 ×
×
= 3.51 ×
(e)
((8.41 ×
) - 7.9)
= (84.1 - 7.9 )
= 76.2 × = 7.62 ×
×
= 7.62 ×
(f)
((1.33 ×
) - 4.9 )
= (13.3 - 4.9) = 8.4 ×