# Currently, you have $60 and your sister has $135 You decide to save $5 of your allowance each week, while your sister decides to spend her whole allowance plus $10 each week. How long will it be before you have as much money as your sister?

It will take 5 weeks for both to have the same amount of savings.

It takes a lot longer to explain what is going on than to do the actual maths with shortcuts.

You start off with $60 in your savings

This is increased by $5 each week so the total in your savings at any given count of weeks count is:

Equation(1) = Equation(2)

Subtract 60 from both sides

Simplify

Divide both sides by 15

Did you know you can treat units of measurement ($) the same way you do the numbers.

The $ signs cancel out so you are only left with numbers

By signing up, you agree to our Terms of Service and Privacy Policy

You will never have as much money as your sister.

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- How do you evaluate #a(b^x)# given a=-3, b=5, x=2?
- A man invests some money at 5%, and $49,000 more than three times the amount at 11%. The total annual interest earned from the investment is $51,370. How much did he invest at each amount?
- How do you find the domain and range for #f(x)=(2x+1)/(x-3)#?
- How do you simplify #1000^2/(252^2 - 248^2)# ?
- What is the domain and range of # y=-3(x-10)^2+5#?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7