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dbag1162
23.06.2019 •
Mathematics
Use properties of equality to solve these equations. identify the properties used and describe how you used them. pls 6. (–5 • 7)25 = x(7 • 25) 7. 5x = 0 8. 63 = 1x 9. 1/8x=1 10. 65 • 92 • 17 = 92 • 17 • x
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Ответ:
10. 65 = x
9. 8 = x
8. 63 = x [it gave you the answer]
7. 0 = x
6. -5 = x
Step-by-step explanation:
#6 uses the Associative Property of Multiplication. #7 uses the Zero Product Property of Multiplication. #8 gave you the answer because x = 1x. For #9, you have to multiply ⅛ by its multiplicative inverse [reciprocal (8)] to get 1. #10 uses the Commutative Property of Multiplication.
**Associative and Commutative are the same thing, EXCEPT Commutative does NOT use grouping symbols. Associative does.
Ответ:
The population of the town will be 86,000 in 2015.
Explanation: Between 1950 and 2010 (60 years) , the population rose by 36,000. To find out how much the pop. rose each year, we divide 36,000 by 60 (the amount of years) and get 600. Between 2010 and 2015 there are 5 years. 5x600 = 3,000. 3,000 + 83,000 (population in 2010) is 86,000.