Answer:
question 20 ) 19.1 feet
question 21) 24 clips
Step-by-step explanation:
Question 20:
Circumference of a circle
formula:
[tex]2\pi r[/tex]
therefore we can find the radius (r) , also include the circumference of 60 feet.
[tex]2\pi r = 60[/tex]
where [tex]\pi = 3.14[/tex]
2 * 3.14 * r = 60
r = [tex]\frac{60}{2*3.14}[/tex]
r = 9.554....
to find the diameter we can use the formula :
diameter = radius * 2
diameter = 9.554 * 2
diameter = 19.108
to 3 sf
diameter = 19.1 feet
Question 21
large binder clips each cost $ 1.50
amount for purchases is $ 36.00
therefore the number of clips bought can be regarded as (x)
the formula would be :
1.50 * x = 36
x = 36/1.5
x = 24
hence the mom bought 24 binder clips
