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3 years ago

The statement Evan wrote comparing 60 inches and 6 feet is true. Which statement did he write

Mathematics

1 answer:

k0ka [10]3 years ago

3 0

Answer:

60 inches = 6 feet

Step-by-step explanation:

Since he said one thing to another means that he wrote an equal sign.

60 inches = 6 feet

Answer: 60 inches = 6 feet

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The cost C (in dollars) of building a house is related to the number k of carpenters used and the number e of electricians used

riadik2000 [5.3K]

$C = 15000 + 50k^2 + 60e^2 \Rightarrow \\
\frac{dC}{de} = \frac{d}{de} 50k^2 + \frac{d}{de} 60e^2 \Rightarrow \\
\frac{dC}{de} = 100k\frac{dk}{de} + 120e\\
Cost\ of\ house\ is\ fixed\ so\ \frac{dC}{de} = 0 \\
0 = 100k\frac{dk}{de} + 120e\ \Rightarrow\ -120e = 100k\frac{dk}{de} \ \Righarrow \\ \frac{dk}{de} = -\frac{6e}{5k} \\

$

find k when e = 15

$100000 = 15000 + 50k^2 + 60(15)^2 \Rightarrow k = \sqrt{1430}$

$\frac{dk}{de} = -\frac{6e}{5k} = -\frac{6(15)}{5\sqrt{1430}} = -0.476$

inst rate of carpenters with 15 <span>electricians:</span> decreasing at 0.476 carpenters per electrician

7 0

3 years ago

Please help me with this question!!

Ivan

The answer is c dude

5 0

3 years ago

Solve for n: 8n = 56

Kruka [31]

Answer:

The answer is number 7

Step-by-step explanation:

56÷8=7

n= 7

6 0

3 years ago

Read 2 more answers

Perform the requested operation or operations. f(x) = 7x + 6, g(x) = 4x2 find (f + g)(x).

Lina20 [59]

(f + g)(x) = 7x + 6 + 4x² = 4x² + 7x + 6

The notation given means to add the rules of f(x) and g(x), and since there are no like terms, your answer is 4x² + 7x + 6

5 0

3 years ago

Mr. Gonzalez drove 30 miles in March. He drove 5 times as many miles in March as he did in January. He drove 2 times as many mil

Deffense [45]

<h2>Answer:</h2>

<h2>12 miles</h2>

Step-by-step explanation:

Given information :

Mr. Gonzalez drove 30 miles in March. In January, she drove 1/5 as much as in March.

30 ÷ 5 = 6 miles in January

in JanuaryShe drove 2 times as many miles in February as she did in January. In January, she drove 30 miles.

6 x 2 = 12 miles in February

8 0

3 years ago