To find out how many pieces of sausage are needed to make 55 pizzas, you can use the given equation [tex]\( s = 21n \)[/tex]. Here, [tex]\( s \)[/tex] represents the total number of pieces of sausage, and [tex]\( n \)[/tex] represents the number of pizzas.
Given:
[tex]\[ n = 55 \][/tex]
[tex]\[ s = 21n \][/tex]
Step-by-Step Solution:
1. Substitute the value of [tex]\( n \)[/tex] into the equation [tex]\( s = 21n \)[/tex].
[tex]\[ s = 21 \times 55 \][/tex]
2. Multiply 21 by 55 to find the value of [tex]\( s \)[/tex].
After calculating, you find that:
[tex]\[ s = 1155 \][/tex]
Therefore, the number of pieces of sausage needed to make 55 pizzas is 1155.
The correct answer is:
A. 1155
