We found the factors and prime factorization of 9 and 12. The biggest common factor number is the GCF number. So the greatest common factor 9 and 12 is 3.

7 0

2 years ago

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in 2005, musicmart sold 12,000 cds. in 2010, they sold 14,550 cds. what is the rate of change in the number of cds sold?

inn [45]

2010-2005= 5 years. 14550-12000=2550
2550/5 = ans = 510 cds/year

8 0

2 years ago

one number is 1 more than 2 times another. if their sum is increased by sevan, the result is twenty six

Lady bird [3.3K]

the numbers are 6 and 13

let x be one of the numbers then the other is 2x + 1

their sum increased by 7 = 26

x + 2x + 1 + 7 = 26

3x + 8 = 26

subtract 8 from both sides

3x = 26 - 8 = 18

divide both sides by 3

x = $\frac{18}{3}$ = 6

the numbers are 6 and (2 × 6) + 1 = 12 + 1 = 13

7 0

2 years ago