Question

Describe how to write an algebraic expression from a real world situation. Include a definition of algebraic expression in your own words.

Answer 1

Three oranges and two apples are bought for $8.
Eight oranges and four apples are bought for $21

Find the value of the oranges and the apples?
Let o = oranges
Let a = apples

3o + 2a = 8
8o + 4a = 21

You can solve these simultaneously. I'm not sure if it will work, but this is your example.

Answer 2

Pretend we symbolize apple with A
and coke cola with C
and deodorant with D
You go to the grocery store and you buy 2 apples and 3 coke colas
so you have 2A+3C

but you get to the car and realize your list said 5 apples and 6 coke colas
and 1 deodorant
so you need 5A+6C+1D

so how do you figure whats left for you to get

do what you need -what you got

so we have

(5A+6C+1D)-(2A+3C)=3A+3C+1D

so this means you need 3 more apples and 3 more coke coloas and 1 deodorant

Answer 3

chaise your problem sounds cool

Answer 4

Yours also. I think yours is easier for KarateChopper to understand though. Jumping straight into simultaneous equations probably wasn't the best idea.

Answer 5

thanks chaise and myininaya, good try though chaise's kinda helped but by the time it was up there i already figured mine out but it was good for reference. :)