Write an equation system based on the problem
"Agatha is five times older than her son, Bob" could be written as:
a = 5b.......(first equation)
"Three years ago, she was nine times older" could be written as:
a - 3 = 9(b - 3)......(second equation)
Solve the equation system
To find the value of b, substitute 5b as a to the second equation
a - 3 = 9(b - 3)
5b - 3 = 9(b - 3)
5b - 3 = 9b - 27
5b - 9b = -27 + 3
-4b = -24
b = -24/-4
b = 6
Her son, Bob, is 6 years old
To find Agatha's age, substitute the value of b to the first equation
a = 5b
a = 5 × 6
a = 30
Agatha is 30 years old
Answer:
The question to your answer is: V = 300 u³
Step-by-step explanation:
Rectangular prism 900 u³ base = 5 u height = 10 u
Rectangular pyramid = ?
Rectangular prism = V = large x height x width
900 = large x 10 x 5
900 = large x 50
900 / 50 = large
18 = large
Rectangular pyramid = V = 1/3 L x w x h
V = (1/3) 18 x 5 x 10
V = 300 u³
Answer:
Yew, he has enough money to buy the guitar in september.
Step-by-step explanation:
300*0.75=225 300+225=525
650*0.35=195 650-195=455
sales tax: 455*0.05=22.75 455+22.75=477.75
14/3
28/6
56/12
there ya go. =)
The probability is 1/12, or 8.33333333333% (the threes go on forever)
