The hour hand on a clock moves 30° each hour. Which fraction of a circle does the hour hand move in 4 hours?

1/3

Step-by-step explanation:

If the hour hand moves 30° each hour and there are 12 hours on the clock, the total degree it would move in 12 hours = 12 x 36 = 360 degrees

degrees moved in 4 hours = 4 x 30 = 120

fraction = 120 / 360

to express in its simplest form, divide both numerator and the denominator by 120

= 1/3

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.