Dakota runs every 6 weeks......so he runs at 6 weeks, 12 weeks, 18 weeks, 24 weeks, 30 weeks

Madison runs every 15 weeks...so she runs at 15 weeks, 30 weeks, 45 weeks

so they will both be running a half-marathon at 30 weeks <==

6 0

3 years ago

Solve the following system of equations. 6x + 5y = -10 3x+ 5y = 20

Anestetic [448]

Answer:

(-10,10)

The point form is (-10,10)

The equation form is x = -10, y = 10

Hope this helps!

3 0

3 years ago

Find the length of the arc of a circle with radius of 20 centimeters intercepted by a central angle of 45 degrees

oksian1 [2.3K]

If the radius is 20cm, the circumference is

$C = 2\pi r = 40\pi$ centimeters.

Now, 45° is one eighth of a whole turn, so the arc intercepted by a 45° angle is one eighth of the whole circumference, so the answer is

$\dfrac{40\pi}{8} = 5\pi$

8 0

3 years ago