3 years ago

$32 earrings marked up 80%

Mathematics

1 answer:

Akimi4 [234]3 years ago

4 0

X/32 = 80/100
^to solve use cross products
32 x 80 = 2560
2560 ÷ 100 = 25.6

$32 + $25.60 = $57.60

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The distance between two cities on a map is 3.5 centimeters. The map uses a scale in which 1 centimeter represents 20 kilometers

zhenek [66]

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8 0

3 years ago

Read 2 more answers

Answer if you know

Arlecino [84]

I've attached a plot of one such cross-section (orange) over the region in the x-y plane (blue), including the bounding curves (red). (I've set $y=1.25$ for this example.)

The length of each cross section (the side lying in the base) has length determined by the horizontal distance $x$ between the y-axis $x=0$ and the curve $y=\sqrt x$ . In terms of $y$ , this distance is $x=y^2$ . The height of each cross section is twice the value of $y$ , so the area of each rectangular cross section should be $2y^3$ .

This means the volume would be given by the integral

$\displaystyle\int_0^22y^3\,\mathrm dy$