Answer:
314
Step-by-step explanation:
Area is pie(r^2
10x10=100
100x3.14 is 314
Multiply 3x9 and it gives u 27
And -3 plus -9 equal -12
The other factor is eight because 9 multiplied by eight is 72 and a negative times a positive is a negative
Answer:
look it up
Step-by-step explanation:
Answer:
5 and 25
Step-by-step explanation:
let the son's age be x then the father's age is x + 20
In 5 years
son = x + 5 and father = x + 20 + 5 = x + 25
Then
x + 25 = 3(x + 5) ← father is three times as old as son
x + 25 = 3x + 15 ( subtract x from both sides )
25 = 2x + 15 ( subtract 15 from both sides )
10 = 2x ( divide both sides by 2 )
5 = x and x + 20 = 5 + 20 = 25
si=on is 5 and father is 25
