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JohnCarney111
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2. Suppose that y varies directly with x and inversely with z, and y = 18 when x = 15 and z = 5. Write the equation that models the relationship. Then find y when x = 21 and z = 7. (1 point) Connections help????
 one year ago
 one year ago
JohnCarney111 Group Title
2. Suppose that y varies directly with x and inversely with z, and y = 18 when x = 15 and z = 5. Write the equation that models the relationship. Then find y when x = 21 and z = 7. (1 point) Connections help????
 one year ago
 one year ago

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JuanitaM Group TitleBest ResponseYou've already chosen the best response.3
for variation problems, you must first find the constant. the formula for direct variation is Y = KX formula for inverse variation is Y = k/Z so combine the two based on your problem Y = (KX)/Z plug in given values for y x and z to find k tell me what K is
 one year ago

JohnCarney111 Group TitleBest ResponseYou've already chosen the best response.0
k=6?
 one year ago

JuanitaM Group TitleBest ResponseYou've already chosen the best response.3
now using that value of k use the same formula and solve for Y based on that x = 21 and z = 7 what did you get?
 one year ago

JohnCarney111 Group TitleBest ResponseYou've already chosen the best response.0
y=18?
 one year ago

JuanitaM Group TitleBest ResponseYou've already chosen the best response.3
You are absolutely right!!!! Remeber those formulas and you can do any variation problem
 one year ago

JohnCarney111 Group TitleBest ResponseYou've already chosen the best response.0
thank you so much
 one year ago
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