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Trava [24]
3 years ago
11

Please help me with this one

Mathematics
1 answer:
skad [1K]3 years ago
5 0

Answer:

71.51

Step-by-step explanation:

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=3·3+7·3+7·3+1

2·﹣34+2·(3·7)2+2·(3·7)2﹣74+2·(7·7)2﹣74=71.51219

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Which statement is equivalent to the inequality 1/2x+3&lt;2x-6?<br><br><br><br> Please help me fast
Lubov Fominskaja [6]
  • <em>Answer:</em>

<em>x > 6</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>1/2 x + ²⁾3 < ²⁾2x - ²⁾6</em>

<em>x + 6 < 4x - 12</em>

<em>6 + 12 < 4x - x</em>

<em>18 < 3x</em>

<em>3x > 18</em>

<em>x > 18/3</em>

<em>x > 6</em>

<em>Good luck ! </em>

7 0
3 years ago
What is the product of (2x - 5)(2x + 5)2 ?
m_a_m_a [10]
8x^2-50 is your answer hopes this helps
6 0
3 years ago
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What is 6.7% written as a decimal?
crimeas [40]
0.067 is the answer for this
8 0
4 years ago
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Lilth makes soap and lotion. It takes her 20 minutes to make a batch of soap and 35 minutes to make a batch of lotion. The cost
fgiga [73]

Answer:

Step-by-step explanation:

Let x represent the number of batches of soap that Lilth makes.

Let y represent the number of batches of lotion that Lilth makes.

It takes her 20 minutes(20/60 = 1/3 hours) to make a batch of soap and 35 minutes(35/60 = 7/12 hours) to make a batch of lotion. Lilth has 20 hours available to make soap and lotion. This means that

x/3 + 7y/12 = 20

4x + 7y = 240- - - - - - - - - - -1

The cost of producing each batch are $5 for the soap and $15 for the lotion. The materials to make the soap and lotion must cost at most $325. This means that

5x + 15y ≤ 325 - - - - - - - - -2

4x = 240 - 7y

x = (240 - 7y)/4

Substituting

5(240 - 7y)/4 + 15y ≤ 325

(1200 - 35y)/4 + 15y ≤ 325

1200 - 35y + 60y ≤ 1300

25y ≤ 1300 - 1200

25y ≤ 100

y ≤ 100/25

y ≤ 4

4x + 7 × 4 = 240

4x + 28 = 240

4x = 212

x = 212/4 = 53

Therefore, the solution (53, 4) means that she would make at most 53 batches of soap and at most 4 batches of lotion

6 0
4 years ago
Kayla bought a car that's price was reduced by 34%. The original price for the car was $16,000. How much did she spend on the ca
aliya0001 [1]

The price was reduced by 34%, so she paid 100-34 = 66% of the original price.

16,000 x 0.66 = 10,560

She paid $10,560

8 0
3 years ago
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