Miss martinez purchase two kinds of candy for a math game. blow pops cost $.50 each and the sneakers cost $.60 each. she purchase a total of 30 pieces of candy for $16.80. writing system of equations that could be used to determine the each candy purchase if s represents the number of knickers and beat represents the number of blow pops purchased

We need to use the information given from the question to help us make our systems of equations

We know that Blow pops cost $0.50 each

We also know that Snickers cost $0.60 each

She bought 30 total pieces of candy

She spent a total of $16.80

First, lets make the systems of equation for the amount of candy she bought

We would represent blow pops as "b", and snickers as "s"

We know that she bought 30 pieces of candy, so our equation would = 30

We add b and s to get 30, so our equation would be:

b + s = 30

Systems of equation for the cost:

Represent blow pops as "b", and snickers as "s" for this equation too

We know that Blow pops cost $0.50 each and that Snickers cost $0.60 each

We know she spent a total of 16.80 dollars, so the equation would = 16.80

You would add 0.50b and 0.60s to get 16.80

The equation would be

0.50b + 0.60s = 16.80

b + s = 30

0.50b + 0.60s = 16.80

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages