The Hughes family and the Sanders famlly each used their sprinklers last summer. The Hughes family's sprinkler was used for 20 hours. The Sanders family's sprinkler was used for 30 hours. There was a combined total output of 1500 L of water, What was the water output rate for each sprinkler if the sum of the two rates was 55 L per hour? Hughes family's sprinkler: Sanders family's sprinkler:

answer: approximately 206 bones

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answer: d.) the total number of protons and neutrons is 15

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step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)