The rule below shows how Mr. Miller's long-distance phone company computes his monthly bill. Which answer expresses that rule in the form of an equation?

Multiply the number of minutes Mr. Miller spent on long-distance calls by $0.50, the long-distance rate. Then add $20, the flat monthly charge.

A. F(t) = $0.50 + t 20
B. F(t) = $(0.50 t + 20)
C. F(t) = $0.50 (t + 20)
D. F(t) = $t (0.50 + 20)

Question

The rule below shows how Mr. Miller's long-distance phone company computes his monthly bill. Which answer expresses that rule in the form of an equation?

Multiply the number of minutes Mr. Miller spent on long-distance calls by $0.50, the long-distance rate. Then add $20, the flat monthly charge.

 		A.	F(t) = $0.50 + t  20
 		B.	F(t) = $(0.50  t + 20)
 		C.	F(t) = $0.50  (t + 20)
 		D.	F(t) = $t  (0.50 + 20)

jadedry · Answer

Each minute Miller spends on the phone costs him 0.50 cents.

He will always spend $20 a month no matter how long or short his calls. 

Therefore:

f(t) = 0.50t + 20

anonymous · Answer

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