Question

Part 1: Write an expression for the following real-world situation.
If Mr. Jackson earns $1000 for every used car he sells and $2000 for every new car he sells, how much would he make if he sold "u" used cars and "n" new cars?

Part 2: Write a real-world situation of your own and a VARIABLE expression to go with it.

Answer 1

for this problem we'll start by making two equations, one that represents money made from used cars, and another that represents money made from new cars

Answer 2

Ok

Answer 3

so for every used car that Mr J sells he makes $1000, so if he sells two used cars he will make two times that amount, if he sells three he will make three TIMES that amount, so if he sells u amount of cars, he will make u times $1000

Answer 4

so our first equation looks like this

(number of used cars) times $1000 = amount of money made

Answer 5

making sense so far?

Answer 6

Yess

Answer 7

good so our second equation is the same thing but with new cars, the number of new cars times $2000 equals the amount of money he makes

(number of new cars) x $2000 = amount of money made from new cars

Answer 8

so we have two equations

\[u \times $1000 = m1\]

and
\[n \times $2000 = m2\]

Answer 9

you see ive inserted variables, that make sense?

Answer 10

Yess It Makes Sense

Answer 11

ok so now we need to make a third equation, m1 + m2 = T

(amount of money from used cars) + (amount from new cars) = (total amount of money)

Answer 12

we then substitute the first two equations into the third to make

(u x 1000) + (n x 2000) = T

Answer 13

and that's your equation, does that make sense?

Answer 14

Yea It Dose !

Answer 15

yay

Answer 16

do you want help with the next part?