3 years ago

What is the percent of decrease from 125 to 25

Mathematics

1 answer:

xenn [34]3 years ago

7 0

The percent decrease is 80% or 80 percent

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7/4x^2 -2 = - 0.05x + 4

nata0808 [166]

Answer:

$x1=\frac{-2-2\sqrt{29401} }{245} x2=\frac{-2+2\sqrt{29401} }{245}$

Step-by-step explanation:

Step One: Convert

49/16x^2-2=-0.05x+4

Step Two: Multiply Both Sides by 80

245x^2-160=-4x+320

Step Three: Move everything to the left

245x^2+4x-480=0

Final Step: Quadratic Formula

$x1=\frac{-2-2\sqrt{29401} }{245} x2=\frac{-2+2\sqrt{29401} }{245}$

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3 years ago

One number is 9 more than 3 times another. If their difference is 29, what is the larger number?

vfiekz [6]

Answer:

Step-by-step explanation:

x-3y=9

x-y=29

subtract

-2y=-20

y=10

x-10=29

x=39

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3 years ago

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Sort each description of data into the appropriate category.

Alex787 [66]

Answer:

Step-by-step explanation:

Qualitative:

Eye colour

Grade level

favourite music group

Quantitive:

Capacity in litres

Height in inches

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3 years ago

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If a function is derivable at a point it is also continous at that point explain why?

Artyom0805 [142]

For a function to have a derivative in a point has to be continuous at the point, that is, it has to be defined at that point, other wise the derivative would be meaningless.

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3 years ago

Twin brothers, person a and person b, can mow their grandparent's lawn together in 18 minutes. person a could mow the lawn by

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