Question

Addison's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 70 espressos in all, 70% of which were single-shot. How many single-shot espressos did the cafe sell????

Answer 1

The number of single-shot espressos sold by the cafe was 49.

Explanation:

It is provided that Addison's Cafe offers two kinds of espresso: single-shot and double-shot.

Total number of espressos sold by the cafe yesterday afternoon was,

N = 70

The proportion of single-shot espresso sold was, p = 0.70.

Let X = number of single-shot espressos sold.

Compute the number of single-shot espressos sold by the cafe as follows:

`E(X)=N* p`

`=70* 0.70\\=49`

Thus, the number of single-shot espressos sold by the cafe was 49.