Egyc corporation manufactures a certain type of smartphone that requires 66 working capacitors per phone. if one out of 34 capacitors is defective, are 133,450 capacitors enough to assemble 1,987 smartphones?

1. first we find how many defective capacitors are there out of 133, 450:

in         34       capacitors --------- 1 defective
in      133,450 capacitors --------- x defective

so  is the expected number of defective capacitors.

2.

So there are in total 133,450-3925=129,525 working capacitors.

3.
To assemble 1,987 smartphones  the corporation needs 1,987*66= 131,142 working capacitors.

4. 
The number of required capacitors is larger than the number of the available ones, so 133,450 capacitors are not enough.

No

Ya i could just need to know what type of math

Ithink it's the first one ( let me know if it right)