Need help now please! Inequalities:
Maria solved the equation -5 1/8n = -9 3/4. Her answer was n = 1 37/41. She is fairly confident about her answer, but wants to do a quick check of her solution using estimation.

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

-6(2) = -12
-5(-2) = -10
-5(2) = -9
-5(2) = -10

thank u!! :)

Question

Need help now please! Inequalities:
Maria solved the equation -5 1/8n = -9 3/4. Her answer was n = 1 37/41. She is fairly confident about her answer, but wants to do a quick check of her solution using estimation.

Which of the following shows a good check of her answer?


-6(2) = -12
-5(-2) = -10
-5(2) = -9
-5(2) = -10

thank u!! :)

ranga · Answer

$$\Large -5\frac{ 1 }{ 8 }n = -9\frac{ 3 }{ 4 } \ n = 1\frac{ 37 }{ 41 }$$
Are those the numbers?

anonymous · Answer

Sorry,the page froze up on me! Yes, those are the numbers :)

ranga · Answer

-5 and 1/8 can be rounded down to -5
-9 and 3/4 can be rounded up to -10
n = 1 and 37/41 can be rounded up to n = 2
Therefore, (-5)(2) = -10

anonymous · Answer

thanks a million :)

ranga · Answer

you are welcome.