Answer/Step-by-step explanation:
1.a)(iv). [tex] \frac{1}{6} + (-\frac{7}{8} [/tex]
Positive multiplied by negative = negative
[tex] \frac{1}{6} - \frac{7}{8} [/tex]
[tex]\frac{4 - 21}{24} = \frac{-17}{24} = -\frac{17}{24}[/tex]
2a.) 73.48 +(-37.3)
[tex] Note: + * - = - [/tex]
73.48 - 37.3 = 36.18
3c.) [tex] 3\frac{3}{4} [/tex] ÷ [tex] (-4\frac{2}{7}) [/tex]
Convert to proper fraction
[tex] \frac{15}{4} [/tex] ÷ [tex] (-\frac{30}{7}) [/tex]
Change ÷ to × and flip the fraction on your right upside down
[tex] \frac{15}{4} * (-\frac{7}{30}) [/tex]
[tex] -\frac{15*7}{4*30} [/tex]
[tex] -\frac{1*7}{4*2} = -\frac{7}{8} [/tex]
3d.) -52.25 ÷ (-5.5) = [tex] \frac{-52.25}{-5.5} [/tex]
(Note: - ÷ - = + )
[tex] \frac{-52.25}{-5.5} = 9.5 [/tex]
