I should know this but I guess I don't, try going on x-actoschoolpro.com ;)
Answer:
x=82
y=18
Step-by-step explanation:
x+y=100
8+x=5y
Answer:
20.25 m²
Step-by-step explanation:
the area (A) and circumference (C) of a circle are calculated using the formulae
C = 2πr and A = πr² ( where r is the radius )
calculate the radius using the formula for circumference
2πr = 9π ( divide both sides by 2π )
r = = = 4.5, hence
A = π × 4.5² = 20.25π m²
8 percent of 84000 is 6720 add 2500 equals 9220
