help plz
Dominic and Stacy each have a stamp collection. Dominic has six fewer stamps than three times the number of stamps Stacy has. Dominic and Stacy decide to give all of their stamps to their younger sister, Mary. If Stacy had s stamps, which expression represents the number of stamps that Mary received?
A.
(3s − 18)(3s − 6)
B.
2s − 18
C.
4s − 6
D.
4s − 18
Answers
Given:
Number of stamps that Stacy has = s
Dominic has six less than three times the stamps that Stacy has.
To find:
Number of stamps that Mary received.
Solution:
Since the number of stamps of Stacy = s
From the question we can figure out that Dominic will have (3s - 6) stamps.
Total number of stamps that Mary received = Sum of stamps of Stacy and Dominic
= s + (3s - 6)
=4s - 6
Therefore the expression that the represents the number of stamps that Mary received will be (C) i.e. (4s - 6).
Since the number of stamps of Stacy = s
From the question we can figure out that Dominic will have (3s - 6) stamps.
Total number of stamps that Mary received = Sum of stamps of Stacy and Dominic
= s + (3s - 6)
=4s - 6
Therefore the expression that the represents the number of stamps that Mary received will be (C) i.e. (4s - 6).