Question

write an expression for the situation
the amount of money you spent if you started with $40 and now have d dollars

Answer 1

okay so lets say that the variable S is the amount of money spent.

Answer 2

okay so if you had 10 dollars and you bought a jacket and now your left with 5 . how much did the jacket cost

Answer 3

5 dollars ?

Answer 4

because 5 + 5 is 10

Answer 5

exactly

Answer 6

what about if
you had 10 dollars and now your left with 2 dollars
how much money did the jacket cost

Answer 7

7 dollars

Answer 8

hmm why do u say 7

Answer 9

i meant 8

Answer 10

becase 10 - 2 is 8

Answer 11

because *

Answer 12

good job!
so you got that by doing
10 - 2 right?
so
if you had 40 dollars and now your left with d dollars
how much did the thing you spent cost

Answer 13

it would have to of cost 40 dollars
40 - 40 = 0

Answer 14

hmm. well we dont know how much money we have left right nor do we have the cost of the thing that you bought

Answer 15

all they tell us is that we are left with "d" dollars

Answer 16

yeah so what would that be

Answer 17

so lets say that S is the cost of the thing that we bought k?
so
S = 40 - d
right?

Answer 18

right so is that the answer?

Answer 19

yup! do you understand why?

Answer 20

s means spent right ?

Answer 21

right it represents like the cost of the coat that we bought

Answer 22

okay thank you ! can you help me with one more ?

Answer 23

sure:)

Answer 24

each persons share of baseball cards if 4 people share c cards equally

Answer 25

very similar to the one we just did
so EachPersonsShare = c/4