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oylermorgan7687
04.07.2020 •
Mathematics
Dabric as
c. The dress maker measures a length of
600 correct to the nearest
5 metres He cuts this inn dress
engths of qm, correct to the nearest
metre
Calentate the largest number of
complete dress lengths he could chat.
Solved
Show answers
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Ответ:
AB = 3y - 1 BC = 7y AC = 29 GIVEN
AB + BC = AC
Substitution
3y - 1 + 7y = 29
combining like terms
10y - 1 = 29
addition property of equality
10y = 30
division property of equality
y = 3
AB = 3y - 1
subsitution
AB = 3(3) - 1
multiplication
AB = 9 - 1
subtraction
AB= 8