The price of an Item has been reduced by 80%. The original price was $65. What is the price of the item now?

Mathematics

1 answer:

PIT_PIT [208]2 years ago

5 0

Answer:

$13

Step-by-step explanation:

multiply 65 by 80 then divide by 100, you get 52, so subtract 65 from 52 you get 13

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Please help Be sure to show your work and solve for f: 8 = f (13-2)

Aleonysh [2.5K]

Answer:

8 = f (13-2)

8=13f-2f

8=11f

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8/11=f

f=8/11

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

98-x2=0 solve this with the quadratic formula

Mars2501 [29]

Answer:

x∈{-7√2, 7√2}

Step-by-step explanation:

$98-x^2=0\\\\-x^2+98=0\\\\a=-1\,,\ \ b=0\,,\ \ c=98\\\\x_1=\dfrac{-0-\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{-\sqrt{4\cdot49\cdot2}}{-2}=\dfrac{-2\cdot7\sqrt{2}}{-2}=7\sqrt2\\\\x_2=\dfrac{-0+\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{2\cdot7\sqrt{2}}{-2}=-7\sqrt2$