. Don, Ron, and Con earned $300. Don is to receive one-quarter, Ron is to receive one-fifth
and Con will receive the remainder.
(a) What fraction of the earnings will Con
receive?

11/20

Step-by-step explanation:

Don: 1/4 of $300 = 300x.25 = $75

Ron:1/5 of $300 = 300x.20 = $60

75 + 60 = $135

300-135 = $165

165/300 = .55 = 55% = 55/100 = 11/20

OR

take 1/4 and 1/5 and make denominators equal

D: 5/20 and R: 4/20 = D+R:9/20 so C:11/20

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2