A circle has a circumference of 77cm. calculate the radius of the circle.(take TT =22/7)

12.25

Step-by-step explanation:

77 divided by 22/7 = 24.5 That is the diameter

12.25 is the radius

The answer is 12.25 cm

Step-by-step explanation:

2πr = C

To make subject r divide both side by 2π we get,

2πr/2π = C/2π

r = C/2π

r = 77 ÷ 2 × 22/7 cm

r = 77 × 7 ÷ 2 × 22 cm

r = 539 ÷ 44 cm

r = 12.25 cm

Thus, The radius (r) of the circle is 12.25 cm

-TheUnknownScientist 72

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: