Question

soybean meal is 14% protein; commeal is 7% protein. How many pounds of each should be mixed together in order to get 280 LB that is 10% protein?

Answer 1

LB means?

Answer 2

@shamim LB = Pounds

Answer 3

Ok

Answer 4

Let soybean=x

Answer 5

Commeal=280-x

Answer 6

U know 14%=0.14

Answer 7

7%=0.07

Answer 8

x+y=280
0.14x+0.01y=(280)(0.07) so far good?

Answer 9

Total amount of protein in soybean=0.14*x

Answer 10

check my above which says 0.14x+0.1y=(280)(0.07)

Answer 11

0.14*x+(280-x)*0.07=280*0.1

Answer 12

x=?

Answer 13

no idea

Answer 14

Wt do u think abt my equation

Answer 15

@Scooby6363

Answer 16

Can i explain my equation?

Answer 17

yes please explain
@jim_thompson5910

Answer 18

Totsl amount of protein in soybean=0.14*x
Right?

Answer 19

yes

Answer 20

Total amount of protein in commeal=0.07*(280-x)

Answer 21

yes

Answer 22

So sum of protein in soybean + commeal=0.14x+(280-x)*0.07

Answer 23

Right?

Answer 24

yes

Answer 25

If protein is 10%

Answer 26

280 pound had total protein=280*0.1=?

Answer 27

its 28

Answer 28

Ok

Answer 29

So we can write
0.14*x+(280-x)*0.07=28

Answer 30

x=?

Answer 31

no idea

Answer 32

0.14x+280*0.07-0.07*x=28

Answer 33

Right?

Answer 34

yes

Answer 35

After multiplicatikn we get my lat equation

Answer 36

280*0.07=?

Answer 37

19.6?

Answer 38

Ok

Answer 39

did u read the question?

Answer 40

0.14x-0.07x=?

Answer 41

0.07

Answer 42

Now after very few calculations tell me x=?

Answer 43

how would i tell you that do i do something to 1.96 and 0.07 and di u read the question???

Answer 44

Can we write
0.07x=28-19.6
Right?

Answer 45

x=372

Answer 46

Can we write
0.07x=28-19.6
Right?

Answer 47

yes 0.07x=26.04
then x=372
how does that get me to the answer

Answer 48

@shamim

Answer 49

28-19.6=8.4
Right?

Answer 50

no its 26.04

Answer 51

U r wrong!!

Answer 52

Tell me 28-19=?

Answer 53

thats 9

Answer 54

Now tell me 28-20=

Answer 55

Now tell me 28-19.6=?

Answer 56

no no @shamim i used my calculator its 28-1.96 and that came out 26.04 check ur calculations

Answer 57

oh ok yes i see my error

Answer 58

then x=120

Answer 59

It will b
28-19.6=?

Answer 60

So amount of soybean=120 pound

Answer 61

what about amount of cornmeal?????

Answer 62

Amount of commeal=?

Answer 63

i dont know

Answer 64

Amount of commeal=280-x=280-120=?

Answer 65

160

Answer 66

Correct!!

Answer 67

Did u get it all ?