3 years ago

Today, Kelly biked 6 times as far as she ran yesterday. She biked 30 miles. How far did Kelly run? _____ miles

Mathematics

2 answers:

AnnZ [28]3 years ago

7 0

Kelly ran 5 miles.
hope this helps!!!!

Gekata [30.6K]3 years ago

7 0

Hi there!☺

If Kelly biked 6 times as far as she ran, and biked 30 miles, then she ran 5 miles.

~Elisabeth

You might be interested in

Use polar coordinates to find the volume of the given solid. bounded by the paraboloid z = 5 + 2x2 + 2y2 and the plane z = 11 in

podryga [215]

Using cylindrical coordinates,

$\displaystyle\int_{x=0}^{x=\sqrt3}\int_{y=0}^{y=\sqrt{3-x^2}}\int_{z=5+2x^2+2y^2}^{z=11}\mathrm dz\,\mathrm dy\,\mathrm dx$
$\displaystyle=\int_{\theta=0}^{\theta=\pi/2}\int_{r=0}^{r=\sqrt3}\int_{z=5+2r^2}^{z=11}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\frac\pi2\int_{r=0}^{r=\sqrt3}r(11-(5+2r^2))\,\mathrm dr$
$=\displaystyle\pi\int_{r=0}^{r=\sqrt3}(3r-r^3)\,\mathrm dr$
$=\dfrac{9\pi}4$