Aplumber pays $3.60 for 60 centimeters of pipe. explain how the plumber can use unit cost of the pipe to find the cost of buying 100 meters of the sis me kind of pipe. show the calculations the plumber needs to make?

cost of 100 meters of the pipe = $600    

Step-by-step explanation:

The plumber bought a pipe of 60 centimeter for  $3.60 . The cost of 1 cm of that pipe can be evaluated as

cost of 1 cm pipe = 3.60/60

cost of 1 cm pipe = = $ 0.06

The plumber wants to buy the same pipe but a length of 100 meters  . Since we know the price of the pipe per centimeter, we have to convert the meter to centimeter.

1 m = 100 cm

100 m = 10000 cm

Since 1 cm cost $ 0.06

10000 cm will cost ?

cost of 10000 cm of the pipe = 10000 × 0.06

cost of 10000 cm(100 meters) of the pipe = $600    

it would be a on edgenuit y

the diagram below is your final answer

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)