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timurjin [86]
3 years ago
8

soybean meal is 16% protein; cornmeal is 8% protein. how many pounds of each should be mixed together in order to get 320-lb mix

ture that is 11% protein?
Mathematics
1 answer:
nlexa [21]3 years ago
7 0

Answer:

120 lb of soybean meal

200 lb of cornmeal

Step-by-step explanation:

S = pounds of soybean meal

C = pounds of cornmeal

S + C = 320  →  C = 320 – S

0.16S + 0.08C = 0.11 × 320 = 35.2

16S + 8C = 3520

16S + 8(320 – S) = 3520

16S + 2560 – 8S = 3520

8S + 2560 = 3520

8S = 960

S = 120

C = 320 – 120 = 200

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adoni [48]

length = 4 yards and width = 3.5 yards

let width be w then length is 2w - 3

area = w(2w - 3) = 14 (rearrange in standard form )

2w² - 3w - 14 = 0 ← in standard form

(2w - 7 )(w + 2 ) = 0 ← in factored form

equate each factor to zero and solve for w

2w - 7 = 0 ⇒ w = 3.5

w + 2 = 0 ⇒ w = - 2

but w > 0, hence w = 3.5

width = 3.5 yards and length = (2 × 3.5 ) - 3 = 4 yards


8 0
3 years ago
Colin and Brian were playing darts. Colin scored 62. Brian scored 59 more than Colin. What was their combined score?
Kamila [148]

Colin scored 62 and Brian scored 59.

Brian scored 59 more points than Colin, so add 59 to 62. You get 121.

Now, combine Colin and Brian's score.

62 + 121 = 183.


Brian made a total of 121 points.

The total score of the game is 183 points.

6 0
3 years ago
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egoroff_w [7]

Answer:

last option bottom right

x can be equal or greater than -2

4 0
2 years ago
Separate the x- and y-values with a comma.<br> X=-3+y<br> 26x - 5y = 6
labwork [276]

Answer:

The solution of the given system is (x,y) = (1,4)

Step-by-step explanation:

Here, the given system of equation is:

x  = -3 + y

26 x - 5 y =  6

Now, substitute x  = -3 + y in the second equation , we get

26 x - 5 y =  6  ⇒   26 (-3 + y) - 5 y =  6

or, 26(-3)  + 26(y)  - 5y = 6

⇒ - 78 + 26 y - 5y = 6

⇒   21 y =  84

⇒  y = 84 / 21 = 4   or ,   y =  4

So x  = -3 + y  =  -3 + 4 = 1

Hence, the solution of the given system is (x,y) = (1,4)

5 0
3 years ago
Please show your work.​
Nastasia [14]

Answer:

1. 8.19, 2. 25.96, 3. 3.95

Step-by-step explanation:

use soh cah toa

1. cos is adjacent/hypotenuse

cos73=x/28

multiply both sides by 28

28cos73=x=8.186

2. sin is opposite over hypotenuse

sin68=x/28

multiply both sides by 28

28sin68=x=25.961

3. sin is opposite over hypotenuse

sin26=x/9

myltiply both sides by 9

9sin26=x=3.945

8 0
3 years ago
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