234k views
1 vote
I need help with my homework questions 1 and 2

I need help with my homework questions 1 and 2-example-1
User WynDiesel
by
7.7k points

1 Answer

4 votes

Answer:

8 weeks

Step-by-step explanation:

The saving of Maria after x number of weeks can be calculated as:

M = 70 - 6x

Because she has $70 and every week she has $6 less.

At the same way, the saving of Dan after x number of weeks can be calculated as:

D = 94 - 9x

Because he has $94 and every week she has $9 less.

Now, the value of M and D need to be equal, so we can write the following equation:


\begin{gathered} M=D \\ 70-6x=94-9x \end{gathered}

So, solving for x, we get:


\begin{gathered} 70-6x=94-9x \\ 70-6x+9x=94-9x+9x \\ 70+3x=94 \\ 70+3x-70=94-70 \\ 3x=24 \\ (3x)/(3)=(24)/(3) \\ x=8 \end{gathered}

Therefore, in 8 weeks their accounts will be equal.

User Hirad Roshandel
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories