The cost of a long-distance phone call from Boston to London is defined by f (t) = 0.85 (t - 1) + 1.50, where the cost is $1.50 for the first minute and $0.85 for each additional minute. The cost of a five-minute phone call is

$ 3.40

$ 4.90

$ 5.75

$ 7.50

$ 9.60

Question

Lili

Mathematics

12 November, 02:41

The cost of a long-distance phone call from Boston to London is defined by f (t) = 0.85 (t - 1) + 1.50, where the cost is $1.50 for the first minute and $0.85 for each additional minute. The cost of a five-minute phone call is

$ 3.40

$ 4.90

$ 5.75

$ 7.50

$ 9.60

+1

Answers (1)

Know the Answer?

Zaiden · Answer 1

The answer is $4.90 because if you multiply 5•.85 it equals $4.25 plus adding $1.50 subtracting the extra minute you first had to pay would give you $4.90

The cost of a long-distance phone call from Boston to London is defined by f (t) = 0.85 (t - 1) + 1.50, where the cost is $1.50 for the first minute and $0.85 for each additional minute. The cost of a five-minute phone call is$ 3.40$ 4.90$ 5.75$ 7.50$ 9.60

The cost of a long-distance phone call from Boston to London is defined by f (t) = 0.85 (t - 1) + 1.50, where the cost is $1.50 for the first minute and $0.85 for each additional minute. The cost of a five-minute phone call is

$ 3.40

$ 4.90

$ 5.75

$ 7.50

$ 9.60