The ratio of the diameters of two circles is y: z. what is the scale factor of the circles?

The scale factor is

Step-by-step explanation:

Given: Ratio of diameter of 2 circles which is y : z

To find: Scale Factor of the circles

Scale factor of circles is the ratio of their radii.

let, a is the same multiple which given exact value of diameter

⇒ The diameter of 1st circle = ya

⇒ Radius of 1st circle =

⇒ The diameter of 2nd circle = za

⇒ Radius of 2nd circle =

So, The scale factor =

                                 =

                                 =

                                 =

Therefore, The scale factor is

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

knlknlkkn

step-by-step explanation: