3 years ago

Y and x have a proportional relationship and y =5 when x = 4 what is the value of x when y =8

Mathematics

2 answers:

mart [117]3 years ago

8 0

Y = kx
k = y / x = 5/4 = 1.25
so
y =8 then
8 = 1.25 x
x = 8/ 1.25 = 6.4

answer
x = 6.4 when y = 8

Marizza181 [45]3 years ago

6 0

Y/x = 5/48/x = 5/45x = 32x = 6.4

Sorry if this doesnt help

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