katherineweightman
22.08.2019 •
Mathematics
Kyle spends an equal amount of money each day. after 4 days, he had 4/5 of his money left. after another 10 days he had $30 left. how much money did kyle begin with?
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Ответ:
to find unit amount per day
1/5 divided by 4
which equals 1/20
kyle spends 1/20 of his total money per day
so after 14 days, he has spent 14/20 of his money
20/20-14/20=6/20 or the amount of money he has left
6/20=$30
if 6/20=$30, then 1/20 equals $5 (30/6)
if 1/20 of Kyles money= $5
5*20= $100
kyle started with $100
Ответ:
y = 19.4 x = 14.1
Step-by-step explanation: Data
the opposite side to the angle 54° is y
the adjacent side to the angle 54° is x
the hypotenuse is 24 units in length
From definition:
sin(54°) = opposite/hypotenuse
Replacing with data and solving for y:
sin(54°) = y/24
sin(54°)*24 = y
19.4 = y
From definition:
cos(54°) = adjacent/hypotenuse
Replacing with data and solving for x:
cos(54°) = x/24
cos(54°)*24 = x
14.1 = x