itasykamila
15.09.2019 •
Mathematics
1. the side of a square is 6.cm, correct to the nearest millimeter. find the lower bound & the upper bound
2. find the upper bound of 6.1 cm & 8.1 cm (it’s correct to 1 decimal place)
3. sarah spends 5 minutes, correct to nearest minute, preparing one meal. she spends a total time of t minutes preparing 30 meals. between what limits does t lie?
4. the distance between singapore and sydney is 6300 km correct to the nearest 100 km. a businessman travelled from singapore to sydney and then back to singapore. he did this six times in a year. between what limits is the total of distance he travelled?
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Ответ:
3x = 95 -7
3x = 88
X = 88/3
Or if you mean 95° is the total angles except A
180-95=85
3x +7= 85
3x = 85-7
3x = 78
X = 26