Nia solved the equation - 1.98 = 5.2v + 13.1. Her answer was v = - 2.9. She is fairly confident about her answer, but wants to do a quick check of her solution using estimation to make sure her answer is reasonable.

Which of the following shows a good check of her answer?

-2 = 5 (-3) + 13

-3 = 5 (-2) + 13

-1 = 5 (-2) + 13

-2 = 5 (-2) + 13

Question

26 September, 10:07

+3

Answers (1)

Know the Answer?

Edward Cole · Answer 1

To solve this, just round each number. - 1.98≈-2, 5.2≈5, - 2.9≈-3, 13.1≈13. The only answer choice which correctly rounds these is A, - 2=5 (-3) + 13