Question

A truck weighs 4500 kg. The truck is packed with bales of wool, each weighing 150 kg.

Part A: Write a function to show the total weight of the truck f(w) when it is loaded with n bales of wool. (4 points)

Part B: What is the total weight of the truck when it is packed with 15 bales of wool? (4 points)

Part C: If a carton weighing 20 kg is also loaded on the same truck, what would be the weight of the truck when it is loaded with 10 bales of wool? (2 points)

I don't know how to answer this can anyone help me with the steps?

Answer 1

total weight is the weight of the truck plus the weight of all the wool.
the weight of all the wool is the number of bales times the weight of each bale.

Answer 2

but im not sure how to write that as a function
is it 4500kg=150kg(x)

Answer 3

now can you write the function if you let the number of bales = x and the total weight = y

Answer 4

remember y = mx + c
c would be the weight of the truck by itself

Answer 5

so my function is wrong?

Answer 6

yes

Answer 7

read what i wrote to start

Answer 8

total weight is the weight of the truck plus the weight of all the wool.

Answer 9

should it be 150kg(x)=4500kg?

Answer 10

4500+150kg=x?

Answer 11

no
the weight varies with the number of bales of wool
the weight of the truck is the toal weight when there is no wool

Answer 12

y = mx + c
total weight = weight of one bale times the number of bales added to the weight of the truck

Answer 13

f(x) = 150x + 4500

Answer 14

oh ok

Answer 15

do you see that now?

Answer 16

yes thank you so for part b you would write f(x)=150(15)+4500 right

Answer 17

total weight of the truck f(w)

Answer 18

part b yes

Answer 19

thanks
for part c I don't know what to do

Answer 20

yes you do!
you have a truck with 10 bales of wool and then I gave you your lunch bag?

Answer 21

so u add the 10 and 20 and get 30 then you say f(x)= 150(30)+4500

Answer 22

150 is the weight of 1 bale of wool and you have 10 plus the weight of the truck plus the carton sorry I was hoping you would know to add your lunch bag the carton so add 20

Answer 23

total weight = truck + wool + carton
= + 150(10) + 4500 + 20

Answer 24

oh so its 1500+4520=6020

Answer 25

got your 2 points!

Answer 26

thanks!

Answer 27

no problem, you are welcome