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If y varies directly with x and y equals 10 when x equals 5 what is the value of k?
Wiki User
∙ 13y ago
We write y=kx since y varies directly as x.
Now we know if x is 5, y is 10.
so we write
10=5k so k=2
Wiki User
∙ 13y ago
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Find an equation of variation where y varies directly as x and y equals 8 when x equals 2 find y when x equals 10?
40
Find an equation of variation where y varies directly as x and y equals 2 when x equals 10 find y when x equals -25?
y = -5
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x = 5.y.z so 5.10.12 = 600
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If m varies directly as n and inversely as o and m equals 20 when n equals 50 and o equals 10 find m when n equals 96 and o equals 16?
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X varies directly with y and z x equals 40 when y equals 10 and z equals 20 Find x when y equals 30 and z equals 40?
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Find an equation of variation where y varies directly as x and y equals 10 when x equals 5 find y when x is 4?
y = 8
Find the variation constant and an equation of variation where y varies directly as x and y equals 10 when x equals 37?
y = kx: 10 = 37k so k = 10/37 and y = 10x/37
If c equals 5 find the value of 2c have to show the working out?
2c 2(5) 10 The answer is 10. You plug in the value of 5 for c. When the number and variable touch directly it implies multiplication.
X varies directly with y and inversely with z x equals 20 when y equals 8 and z equals 4 Find x when y equals 4 and z equals 8?
The answer is x=10. If: x=20 y=8 z=4 then: y=8/2=4 z=4*2=8 since x varies directly with y, meaning whatever happens to y, happens to x, so if y was divided by 2, then x should be divided by 2. After all, the inverse of division is multiplication.
