Answer:
95π
Step-by-step explanation:
area of a circle=πr²
radius of the big circle = 24/2=12
area of big circle = π(12)² = 144π
are of small circle = π(7)² = 49π
shaded area = area of big circle - area of small circle
= 144π-49π
= 95π
Answer:
time walking=1-t hrs
ditace is same
therefore 2.5*(1-t)=45*t
2.5-2.5t=45t
t=2.5/46.5 hrs
this has only one solution since it is in linear form
Answer:
Step-by-step explanation:
LEt the number be x.
2x - 5 = 3
2x = 3 + 5 = 8
x = 8/2 = 4
To solve the equation: add 5 to both sides and then multiply by 1/2.
Answer:15/31
Step-by-step explanation: because there are 31 kids in all and 15 of them are boys so 15/31
