A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
Can someone please help me with this problem, I do not understand how to solve
 one year ago
Can someone please help me with this problem, I do not understand how to solve

This Question is Closed

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Let the part of it that's being invested at a rate of 5% per annum be x. Let he other part that's being invested at 7.2% "5000x".

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0can it not also be y ?

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Why would you want two variables when you can solve it using one? Do you want to make your life harder?

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0Its because i am learning graphing at the moment so i thought there would be y in there

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Does the question have the word sketch/draw or graphically in it?

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Then what kind of reason was that?... Now let's continue on with the question rather than giving random excuses as to what you're learning.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Also write 7.2% as a decimal.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Sorry I meant fraction. My apologies.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Make it into the simplest form please. If you don't know how to simplify fractions into its simplest form, then I suggest you use your calculator.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1The question says 7.2%....not 7.5%....

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1You only got one correct. Please rewrite 7.2% as a fraction again please.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Sorry about that, my comp lagged out.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Okay now. Do you agree that (x times 5%)+[(5000x) times 7.2%)]=349?

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Okay, now change the 5% and 7.2% into the fractions you wrote previously and show me your equation.

waheguru
 one year ago
Best ResponseYou've already chosen the best response.01/20 x + 9/25 (5000x) = 349

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Now. You just figured the equation that would lead you to finding x. \[\frac{ x }{ 20 }+\frac{ 9(5000x) }{ 125 }=349\]

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1I'm just letting you go for just writing 25 but I will let you go this time due to the probability of that being a typo.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Okay, so when you get rid of the fractions by multiplying both sides with the Lowest common multiple, tell me what you get.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Multiply by 500 to both sides.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Tell me what you get. Afterwards, you would have to expand/distribute the brackets/paranthesis.

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0Ill do that, but just for knowledge this can also be answered by using the decimals (0.05 and 0.075) right

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1I just reckon fractions are clearer and you would understand a bit better.

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0I find fractions a bit difficult so i did decimals, 0.05x + 0.072(5000x) = 349

waheguru
 one year ago
Best ResponseYou've already chosen the best response.00.05x + 3600.072x = 349

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Okay...Well then expand/distribute the brackets/paranthesis...

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0and 0.05x  0.072 = 11

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Where's the x gone mate?

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0sry (you are am amazing teacher you can catch the slighest mistakes =) 0.05x  0.072x = 11

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Okay collect likes terms. That means group the x's together.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Yep and then what do you get for the other one.

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1That's the first part where it was invested at a rate of 5% p.a

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1So what about the part where it was invested at a rate of 7.2%?

waheguru
 one year ago
Best ResponseYou've already chosen the best response.04500 the rest of the money

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0wow, you are just an amazing teacher. thank you soo much

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1I will show what I did using fractions. This just give you a look at a different perspective in solving these. \[25x+36(5000x)=174500\] \[25x+18000036x=174500\] \[11x=180000174500\] \[11x=5500\] \[x=500\]

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1And no worries. Good work.

waheguru
 one year ago
Best ResponseYou've already chosen the best response.0Mr, Aztech are you usually available at this time so I can ask you for help

Azteck
 one year ago
Best ResponseYou've already chosen the best response.1Not all the time. I'm also busy with my own work. So some days I will be off doing my work and other days I will be resting and so on. This is only just a bit of fun to help others with their homework.
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.