Math for life-skills

ASpuzzler

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Hello. I am trying to figure out how to divide an order I got where the cost is 243.50 and I will pay 3/8 of it and another person will pay 5/8 of it. I can't figure out how to set it up.
 
Hello. I am trying to figure out how to divide an order I got where the cost is 243.50 and I will pay 3/8 of it and another person will pay 5/8 of it. I can't figure out how to set it up.

In mathematics, "of" is translated as "multiplied by" (symbol *). Then:

You pay 3/8 of 243.5 → You pay (3/8 * 243.5 =) ???

similarly


Another person pays 5/8 of 243.5 → Another person pays (5/8 * 243.5 =) ???
 
Math for Life Skills

In mathematics, "of" is translated as "multiplied by" (symbol *). Then:

You pay 3/8 of 243.5 → You pay (3/8 * 243.5 =) ???

similarly


Another person pays 5/8 of 243.5 → Another person pays (5/8 * 243.5 =) ???

Thank you. This helped me. Do you have an algebraic way to set it up? Or I should always
just do it this way. Simple enough. Or could it be simpler? :p
 
Last edited:
Math for Life skills

Well, can't be much simpler; perhaps this:
a = 243.50
x = 3/8

u = 1st person = a * x
v = 2nd person = a - u

Ahhh. Okay. I get it now for the algebraic way, too. Just wanted to know because my tutor had told me how algebra can really simplify for me. I guess in this case it made it slightly harder? Haha. Though I know exactly what to do when you set it up for me. Thank you for your help. Since the icons and their keyboard counterparts are not working, I give you a smilie, 3rd one across, second one down.
 
Same Life skills problem 2 different answers

In mathematics, "of" is translated as "multiplied by" (symbol *). Then:

You pay 3/8 of 243.5 → You pay (3/8 * 243.5 =) ???

similarly


Another person pays 5/8 of 243.5 → Another person pays (5/8 * 243.5 =) ???

So I set up the problem (with shipping and handling included this time, 292.66). One person pays 3/8; other person pays 5/8. I set it up as 292.66 * 3/8. Answer, 292.66 * 3 divided by 8 or 292.66 * 8 divided by 3. Very different answers. Aren't we supposed to cross multiply so that it is 292.66 over 1 * 3 over 8. Cross multiply 292.66 * 8; over 3*1? Why won't the answers be the same either way? Now I can't trust what I have because it could be wrong. Thank you.
 
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