3 years ago

To decrease an amount by 28% , multiply by ????

1 answer:

5 0

I believe it is by .28. you take the original number, multiply if by .28 and subtract that answer from the original answer to decrease the amount by 28%.

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laila [671]

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2 years ago

Divide 2 and 1/5 by 1/10. Simplify your answer

laila [671]

Answer:

Step-by-step explanation:

2 divided by 1/10 equal 20.

1/5 divided by 1/10 equals 2.

20 divided by 2 equal 10.

8 0

3 years ago

Please help me solve this!!

lyudmila [28]

Answer:

$x=\sqrt{-2},or,x=\sqrt{2}i$

Step-by-step explanation:

$-3x^2+11=17\\-3^2+11-(11)=17-(11)\\-3x^2=6\\x^2=-2\\x=\sqrt{-2}$ I don't know what level math you're taking but in lower level math this would be undefined, can't be simplified. But some higher levels simplify it with imaginary or complex number representations. So take your pick, but it's still undefined
$x=\sqrt{2}i$