Question

A very old vending machine accepts only nickels (n) and dimes (d). Candy costs up to $0.50, but sometimes the machine will dispense candy without any coins being inserted into the machine. Which inequality shows all of the ways to obtain a candy bar from the machine?

Answer 1

um...are there answer choices

Answer 2

ya one sec

Answer 3

i have no clue what the answer is....

Answer 4

I am sorry....I am lost on this one too :(

Answer 5

ok thnx anyway

Answer 6

so we will get some help..
@zzr0ck3r

Answer 7

@joemath314159

Answer 8

@satellite73

Answer 9

@oldrin.bataku

Answer 10

A very old vending machine accepts only nickels (n) and dimes (d). Candy costs up to $0.50, but sometimes the machine will dispense candy without any coins being inserted into the machine. Which inequality shows all of the ways to obtain a candy bar from the machine?

well normally we'd expect our total sum to hit \(50\)cents i.e. \(5n+10d=50\) (which is equivalent to \(n/20+d/10=1/2\) by dividing by \(100\) to 'convert' everything from cents to fractions of dollars). if the machine sometimes dispenses candy without any coins, however, we also expect sometimes \(n=d=0\) to yield a solution, despite \(5(0)+10(0)=0<50\). my guess would then be \(5n+10d\le50\) since it includes all solutions (but more than just that). this is equivalent to \(n/20+d/10\le1/2\)

Answer 11

oh oops, candy costs UP TO \(50\) cents... so it may be \(\le1/2\) from the get-go

Answer 12

wow....I knew some smart person would come...thanks oldrin_bataku

Answer 13

thnx

Answer 14

well..even if I didn't really help with the problem...I tagged and he found your answer. well done :)

Answer 15

theat's the answer