Adozen fidget spinners cost $9.60 what is the unit rate of the spinners

The unit rate of the spinners is $0.80

Solution:

Given that

Cost of a dozen fidget spinner = $9.60

Need to calculate unit rate of the fidget spinner.

Unit rate means cost of 1 fidget spinner.

As 1 dozen = 12 units

So cost of a dozen fidget spinners means cost of 12 units of fidget spinner.

Cost of 12 units of fidget spinner = $9.60

So cost of 1 unit of fidget spinner

Hence unit rate of spinner = $0.80

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm