How much more light can the Keck telescope (with its 10-m diameter mirror) gather than an amateur telescope whose mirror is 25 cm (0.25 m) across?

40 times

Step-by-step explanation:

It is given that,

The aperture of Keck telescope, d₁ = 10 m

The aperture of the amateur is 25 cm or, d₂ = 0.25 m

Gathered light is directly proportional to the area of the mirrors as :

r is radius, r = d/2 (d=diameter of the mirror)

It is directly proportional to the diameter of the mirrors.

On taking ratios of the area of both mirrors, we can get the ratio of light gathered.

So,

It means that Keck telescope will gather 40 times light than amateur telescope.

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!

javeir earned 56 dollors more than kyle so kyle and javier had 14w but javier made 56 dollors more so 14w plus 56 equals 70w so kyle has 14w

step-by-step explanation: hope i plz give me brainliest with the points so this is not constant cause it says last week so its clearly not every week