Question

1. Determine if the following are in proportion.
(a) A5, 45, 40, 120
(b) 83, 124,9,98
1d) 32, 48, 70, 210
(e) 4,6,8,12
(c) 24, 28, 36, 48
(1) 33., 44, 75, 100​

Answer 1

Answer:

Step-by-step explanation:

$\frac{15}{45} =\frac13 \ and \ \frac{40}{120} =\frac13$

so 15,45,40,120 are in proportion

(b) 83,124,9,98

$\frac{83}{124} \ne\frac{9}{98}$

So not in proportion

(c) 24,28,36,48

$\frac{24}{28} =\frac67 \ and \ \frac{36}{48} =\frac34\\\\\bf so \ \frac{24}{28} \ne \frac{36}{48}\ hence\ not \ in \ propotion$

$(d) 32,48,70,210\\\\\frac{32}{48} =\frac23, \frac{70}{210} =\frac13\\\\\bf{ Not\ in \ Proportion}\\\\(e) 4,6,8,12\\\\\frac46=\frac23 \ and \ \frac{8}{12} =\frac{2}{3} \\\\\bf{ Not\ in \ Proportion}\\\\(f) 33,44,75,100\\\\\frac{33}{44} =\frac{75}{100} =\frac34\\\\\bf{Hence\ in \ Proportion}$