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1 answer:
Answer:
Option (2)
Step-by-step explanation:
If the first term of an arithmetic sequence is 'a' and common difference as 'd',
Explicit formula representing the nth term of the sequence is given by,
Here, n = number of term
If first term 'a' = 19 and common difference 'd' = 4
Explicit formula for the sequence will be,
Therefore, Option (2) will be the correct option.
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Given:
Kelly purchased 5 containers of ice cream for a party.
Each container holds 8 cups of ice cream.
Her brother ate 2 cups of ice cream.
One serving of ice cream = 2/3 of a cup.
To find:
Number of servings of ice cream will be left for the party?
Solution:
We have,
1 container = 8 cups of ice cream
5 containers = 5×8 = 40 cups of ice cream
Her brother ate 2 cups of ice cream. So, remaining cups of ice cream is
cups
Now,
of a cup = 1 serving
1 cup = serving
38 cup = serving
= serving
= 57 serving
Therefore, 57 servings of ice cream will be left for the party.