3. The value of the digit 4 in the number 421,368 is 10 times more than the value of the digit 4 in which number? Explain how you found your answer

40,000

Step-by-step explanation:

The value of the digit 4 in the number 421,368 is 400,000

400,000 is 10 times more than ___

400,000/10 = 40,000

I know that the value of the digit 4 in the number 421,368 is 10 times more than x. The value of the digit 4 in the number 421,368 is 400,000. 400,000 is 10 times more than x. I did 400,000/10, which is 40,000. I got 40,000 as my final.

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)