Me tuition is tomorrow and i don't know the answer plz 20th question .

75 times in a minute

1 minute = 60 seconds

75 times > 60 second

1 time > ((60/75) x 1) second

Time period = (60/75) second

Frequency = 1/Time period

Frequency = 1/(60/75) = 1/0.8 = 1.25 Hz

Hope it helped!

what are you trying to solve here

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.