JoeyJo6704
29.05.2020 •
Mathematics
If y varies directly as x, and y is 12 when x is 1.2, what is the constant of variation for this relation?
1
10
10.8
14.4
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Ответ:
K=10
Step-by-step explanation:
Y varies directly as X
Y=kx
K is a constant
12=k1.2
K=12/1.2=10
K=10
Ответ:
32
Step-by-step explanation:
The perimeter is equal to sum of side lengths
4x + z + 3 + 5z - 3 = 80 add like terms
10z = 80 divide both sides by 10
z = 8 PR is 4z so 8*4 = 32