Question

please help i will fan and medal.

Answer 1

(04.07)

Maggie and her friends are each able to recruit a certain number of people each year to sample a product. The number of people per year is represented by the function f(t) = 3(2)t. What does the t represent? How many people were recruited in year 6?

t represents the year number; 36 people were recruited in year 6
t represents the year number; 192 people were recruited in year 6
t represents the number of people; 192 people were recruited in year 6

Answer 2

hello,

Answer 3

i dont mean to be rude i just think that the website is not refreashing because it keeps typing

Answer 4

f(t) = 3(2)t

Let's look at what each of the symbols in our function means:

- We are told in the question that we have a function f which represents the number of people recruited per year.
- Our function f is express with respect to t, hence 'f(t)'. So, the value of our function f directly depends on the value we input for t. In this case, we can think of f as a machine, in which we input a certain value for t and we get out a value for f(t).
- 't' represents the time we are evaluating the function at, in this case the year we are dealing with.

In year 1, for example, we say t = 1 and:
f(t = 1) = f(1) = 3(2)(1) = 6

In year 2, t = 2 and:
f(2) = 3(2)(2) = 12

So, for year 6, t = 6 and:
f(6) = 3(2)(6)

which if you work out should give you the answer!

Answer 5

would it be b?

Answer 6

@Ciarán95

Answer 7

No, it's not B @amypurplediaz28 ! Remember, to work out the number of people in year 6, we need to work out:
f(6) = 3 x 2 x 6

So what's the answer?

Answer 8

oh so it would be a right?

Answer 9

because of the 36

Answer 10

Yes, that's correct, f(6) = 36 people in year 6! :)

Answer 11

thx but do u mind helping with one more?

Answer 12

I will try if I can! What's your question?

Answer 13

(04.07)

Julie is at the store buying groceries. She needs to get a quart of orange juice and some peaches. The quart of orange juice costs $2.25 and the peaches are $0.75 each. The function f(x) = 0.75x + 2.25 represents Julie's expenses at the grocery store. What do the f(x) and the x represent?

f(x) represents the number of items purchased at the grocery store; x represents the number of peaches purchased
f(x) represents the total cost of the grocery bill; x represents the cost per peach
f(x) represents the number of items purchased at the grocery store; x represents the cost per peach
f(x) represents the total cost of the groceries; x represents the number of peaches purchased

Answer 14

it is sort of the same but i dont get it

Answer 15

try looking at it again

Answer 16

f(x) = 0.75x + 2.25

So, we'll look at this one step at a time. f is a function which represents the total amount of money Julie spends. If each peach costs $0.75, what do you think the 'x' represents beside it?

Answer 17

would it be c

Answer 18

yes it would

Answer 19

Nope, C isn't right @amypurplediaz28 .....Let's try and look at this again!

Answer 20

my other choice was b but i am not sure

Answer 21

@Ciarán95

Answer 22

If I went into a shop and spent $2 on apples which cost $1 each, how many apples would I have bought?

Of course, I must have bought 2 apples, as $2 = $1 x 2 apples

This is exactly what we're showing here in our function. f(x) is a function which represents the total amount Julie spends in the store. We know she buys 1 orange juice costing $2.25. We also know she buys a certain number of peaches, each of which will cost $0.75.

So, 'x' must represent the total number of peaches that she bought, which we multiply by $0.75 to find the total amount she spent on peaches overall. It's just like when we multiplied $1 and 2 apples above! We then add this to $2.25 (for her 1 orange juice) to get the total value of our function overall.

So what's the right answer...it's not A either!

Answer 23

so its d right

Answer 24

Yes, you've got it....well done :)

Answer 25

thank u so much

Answer 26

No worries, hope that helped you out! :)