ANSWER
12 batteries would be defected.
STEP BY STEP.
the ratio is
15:2
For every 15 batteries, 2 are defective
So in order to get from 15 batteries to 90 you multiply
15x6 so
you’d have to multiply 2 as well
2x6
Which in total gives you 12. Defected batteries.
D. 11 hours and 20 minutes
Just count your 5s do 5 ,10,ect
Answer:
The answer is 40(1.25 – t) C.
Step-by-step explanation:
That's the answer for e2020 students!!