Jamie says the value of the expression 1.43 x (-20/39) is close to - 0.75. Does jamie's estimate seem reasonable? explain. Jamie's estimate is reasonable. The product of the expression is negative and about half of

Yes. J amie's estimate seem reasonable.

This is because, when we expand the expression 1.43 x (-20/39) we get;

1.43 x (-20/39) = - 0.73333 ... (3 is repeating)

Her estimate was - 0.75 while the actual answer is - 0.73333 ...

This is a good estimate since the difference is 0.016666 ... which is negligible.