Colin is working to earn some money for a new cd player. On Saturday he earned half as much as he did on Sunday, but twice as much as he did on Friday. During those three days he earned $70. How much did he earn each day?
x is what he earned on Saturday
2x is what he earned on Sunday
x/2 is what he earned on Friday
x + 2x + x/2 = 70
3.5 x = 70
x=70/3.5
x = 20
$20 on Saturday
$40 on Sunday
$10 on Friday
saturday=20 sunday= 40
friday-= 10
Dont wanna here my answer im from 6th grade LOL
I think idk hehehe
To find out how much Colin earned each day, we can use an algebraic approach.
Let's assume that Colin earned X dollars on Friday.
According to the problem, Colin earned twice as much on Saturday as he did on Friday. Therefore, his earnings on Saturday would be 2X dollars.
On Sunday, Colin earned half as much as he did on Saturday. So, his earnings on Sunday would be (1/2)(2X) = X dollars.
Now, we know that the total earnings over the three days amount to $70.
Considering this, we can write the equation:
X + 2X + X = 70
Combining like terms, we have:
4X = 70
To solve for X, we divide both sides of the equation by 4:
X = 70 / 4
X = 17.5
So, Colin earned $17.5 on Friday, $35 on Saturday, and $17.5 on Sunday.