shelbiec5355
27.01.2020 •
Mathematics
Gavyn, david & alex share some money in the ratio 5 : 3 : 4.
in total, gavyn and alex receive £99.
how much does david get?
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Ответ:
David will get £25
Step-by-step explanation:
Total ratio = 5+3+4 = 12
Total amount = £99
David Share in amount = (3/12)*99 = 1/4*99 = £24.75
£25 rounded off to nearest whole number
Ответ:
Perpendicular line are negative reciprocal to each other. Meaning the 4 can be turned into 4/1 (easier to see) and flip the fraction and then add a negative sign. So -1/4.
Parallel lines have the same slope because the lines never meet.