The ratios in an equivalent ratio table are 3:12,4:16, and 5:20. If the first number in the ratio is 10, what is the second numb
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The number of hours that should be used to study over the weekend =hrs
The number of hours to study 3 credit course is = 6hrs/ week.
The number of hours studied on monday, wednesday and friday,
= 3/5 + 16/4 +2/3
The lowest common multiple of the denominators 5, 4 and 3 = 60
=
= 316/60
Reduce to the lowest figure by dividing through with 4,
= 79/15
To detemine the extra hours to be studied over the weekend, subtract 79/15 from 6.
that is, 6/1 - 79/15
The lowest common multiple of denominators 1 and 15 = 15
=
= hrs
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