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
Let w won games, t tied games, s lose games
s=4w
t=w-5
s+t+w=43
4w+(w-5)+w=43
6w=48
w=7
s=4*7=21 games lost
Answer: 1/12 of the box
Step-by-step explanation:
On Monday the dog ate 3/12 of the treats in the box and on Tuesday ate 2/12 of the treats in the box.
The answer to this question is the difference between both these fractions:
= 3/12 - 2/12
= 1/12 of the box
Answer:
426 m^2
Step-by-step explanation:
I got 2.17 but I'm not sure that's right.
