Question

If p:q = 5 : 7 and p - q = -4, then 4p + 3q = what?
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Answer 1

Answer:

let p =5x and q = 7x

therefore, 5x-7x=4

-2x=4

-x=4/2

x=-2

so 5x = 5*-2=-10

7x=7*-2=-14

4p+3q=?

4*-10+3*-14=-82

our answer is -82