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Ivahew [28]
3 years ago
14

Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds of each should be mixed together in order to get 280lb mixt

ure that is 8% protein?
How many pounds of the cornmeal should be in mixture?
How many pounds of the soybean meal should be in mixture? 50 POINTS!!!!
Mathematics
1 answer:
TiliK225 [7]3 years ago
7 0
0.14x + 0.07(280-x) = 0.08*280

0.14x + 19.6-0.07x = 22.4

0.07x + 19.6 = 22.4

0.07x = 2.8
x = 2.8 / 0.07 = 40
 x = 40 pounds of Soybean
280 -40 = 240 of cornmeal



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Sunny_sXe [5.5K]
5/12 multiplied by 2 equals 10/24 which when divided by 2 it equals 5/12
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2. The original price of a T.V. is $1,100. During a Christmas sale, the T.V. is discounted 20%. What is the final price of the T
gtnhenbr [62]

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888 if you pay, and savings is 222

Step-by-step explanation:

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3 years ago
I Really Need Help!!!!! :)
DerKrebs [107]

Answer:

Hence first graph is the correct answer.

T I

1 28

2 56

3 84

4 112

Step-by-step explanation:

Given that initial amount P = $400

Simple rate of interest = R = 7% = 0.07

Time t= 1,2,3,4 years.

Then apply Simple interest formula to find the total interest earned in the given years.

I=PRT

for t=1 year

I=PRT=400(0.07)(1)=28

for t=2 year

I=PRT=400(0.07)(2)=56

for t=3 year

I=PRT=400(0.07)(31)=84

for t=4 year

I=PRT=400(0.07)(4)=112

Now we have table as shown below:

T I

1 28

2 56

3 84

4 112

Graphing these points we see that obtained graph best matches with First choice .

Hence first graph is the correct answer.

7 0
3 years ago
A rock is dropped off a 500-foot cliff. After 1 second the rock is traveling 32 feet per second then after 4 seconds the rock st
kozerog [31]

Answer:

<u>A. The equation describing the relationship between speed and time is:</u>

<u>s = 32t</u>

<u>Ordered pairs of the form (speed, time) are:</u>

<u>(32, 1)</u>

<u>(64, 2)</u>

<u>(96, 3)</u>

<u>(128, 4)</u>

<u>B. </u>

<u>Using s = 32t, we have:</u>

<u>s = 32 * 5 = 160 feet per second</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Height of the cliff = 500 feet

Speed after one second = 32 feet per second

Speed after four seconds = 128 feet per second

2. Assume the relationship between time, t, and speed, s, is linear and write an equation describing the relationship. Use ordered pairs of the form (speed, time)

The equation describing the relationship between speed and time is:

s = 32t

Ordered pairs of the form (speed, time) are:

(32, 1)

(64, 2)

(96, 3)

(128, 4)

3.  Use the equation to determine the speed of the rock 5 seconds after is dropped.

s = 32t

s = 32 * 5 = 160 feet per second

Note: Same answer to question 14436233, answered by me today.

4 0
3 years ago
Hi everyone can y’all plz help me thanks
yan [13]

It's -4/3

hope it helps...

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2 years ago
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