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OLga [1]
3 years ago
10

What percent of 12.4 is 12.4

Mathematics
1 answer:
Tpy6a [65]3 years ago
3 0
...I don't really get the question but 12.4 turned into a percent is 1240% lol
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Solve for X: -5x - 7<28
lesya [120]

Answer:

x < 7

Step-by-step explanation:

Given

5x - 7 < 28 ( add 7 to both sides )

5x < 35 ( divide both sides by 5 )

x < 7

8 0
3 years ago
Read 2 more answers
A farmer owns a 100 acre farm and plans to plant at most three crops. The seed for crops A,B, and C costs $40, $20, and $30 per
aev [14]

Answer:

The number of acre per crop for maximum profit is;

Crop A = 0 acres

Crop B = 60 acres

Crop C = 40 acres

Profit, P = $26,000

Step-by-step explanation:

We plant A in X acres

B in Y acres and

C in Z acres

Therefore, X + Y + Z ≤ 100

we work A for 1·X workdays

B for 2·Y workdays and

C for 1·Z workdays

Where X + 2·Y + Z ≤ 160

$40·X for crop A

$20·Y for crop B and

$30·Z for crop C is spent whereby

$40·X + $20·Y + $30·Z ≤ $3200

The farmer makes

$100·X from crop A

$300·Y from crop B and

$200·Z from crop C

P = $100·X + $300·Y + $200·Z

Therefore, we have three equations with three unknowns solving the equations simultaneously, we have

X + Y + Z = 100....................................................(1)

X + 2·Y + Z = 160.................................................(2)

$40·X + $20·Y + $30·Z = $3200....................(3)

By subtracting equation (1) from (2) gives Y = 60 acres

Multiplying equation (1) by 40 and subtracting from (3) we  have Z = -40

and therefore, Y = 80

If he plants only B the farmer has 2 work day per acre and since there is a max of 160 days, he can only plant on 80 acres, therefore, total profit = $300 × 80 = $24,000

Comparing the profit per acre to the seed cost we have Profit for seed A = $100 while cost = $40 per acre,

If we remove seed A we have

Y + Z = 100....................................................(4)

2·Y + Z = 160.................................................(5)

$40·X + $20·Y + $30·Z = $3200....................(3)

Solving equation (4) and (5), we have Y = 60 acres and Z = 40 acres

Therefore, the profit becomes

$300 × 60 + $200 × 40 = $26,000.

3 0
3 years ago
Can the degree of a monomial ever be a negative? please explain why or why not.
lana [24]
Greetings!

Yes, the degree on a monomial can be negative:

Example:
9x^{-2}

This is equal to:
1/9x^{2}

Hope this helps.
-Benjamin
3 0
3 years ago
Hey:) can you please help me posted picture of question
oee [108]
Answer:
x² + 10x + 25

Explanation:
Before we begin, remember the following:
(a + b)(a + b) = (a + b)² = a² + 2ab + b²

Now, for the given we have:
(x + 5)(x + 5)
We can note that the two brackets are identical.
Therefore, we can apply the above rule as follows:
(x + 5)(x + 5) = (x + 5)²
                     = (x)² + 2(x)(5) + (5)²
                     = x² + 10x + 25

Hope this helps :)
8 0
3 years ago
AJ went to the arcade and bought $10 worth of tokens if each token cost $0.25 how many tokens did he get
brilliants [131]

Answer:

he got 40

Step-by-step explanation:

10/0.25

7 0
3 years ago
Read 2 more answers
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