3 years ago

A city received 17 inches of rain last year which was only 37% of what the usually get, how many inches doe it normally get?

Mathematics

1 answer:

Elina [12.6K]3 years ago

8 0

You use the unitary method :)

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Four bells ring at intervals of 3, 7 , 12 and 14 minutes respectively. All four rang together at 4:00a.m. At what time will they

Vlada [557]

Basically ur just looking for the LCM (lowest common multiple) of all of these numbers.

3,7,12,14....lowest number that all 4 of these numbers go into evenly is 84.

so they will ring together next in 84 minutes (1 hr 24 minutes) making it 5:24 a.m.

8 0

3 years ago

In a right triangle, Sin (30 + x) º = Cos (3x) º. What is the value of x?

pogonyaev

Answer:

$x=15^\circ$