Emily's savings=x 1.x-55=n
N=New emily's savings 2.N-55=x
Answer:
a = 254.5 mm² ( if using accurate value of π)
a = 254.4 mm² (if using 3.14 as approximate value of π)
Step-by-step explanation:
a = πr²
a = π * 9²
a = π * 81
(note using π = 3.1415926536)
a = 254.4690049408
Rounded
a = 254.5 mm²
(a = 254.4 If using π = 3.14)
Answer:x=9/34
Step-by-step explanation:
To find the value of x in 9/4x=8 1/2
Change 8 1/2 to improper fraction
17/2
9/4x=17/2
Cross multiply
18=68x
divide through by 68
x=9/34
Here you go look at the drawings