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3 years ago

How many pounds are equal to 400 ounces

Mathematics

1 answer:

Stella [2.4K]3 years ago

6 0

Answer: 25 pounds

Step-by-step explanation:

1 pound = 16 oz

400 oz / 16 oz = 25 pounds

I am not a professional, I am simply using prior knowledge!

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228 employees in total

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3 years ago

What is y - 8 = -1/2 (x + 4) in standard form (8th grade math)

Natalija [7]

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+8 +8
y=-1/2x +6
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3 years ago

Three consecutive integers are n-1, n and n+1. Write an expression for the sum of the three integers.

svlad2 [7]

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3 years ago

Hi, how's everyone doing? I need help with these exponential equations, please. Thanks! :)

Vesna [10]

Answer:

Step-by-step explanation:

1). $2^{x^{2} +2x}=\frac{1}{2}$

$2^{x^{2} +2x}=2^{-1}$

Comparing exponents on both the sides.

x² + 2x = -1

x² + 2x + 1 = 0

(x + 1)² = 0

x = -1

2). $2^{x-3}=8^{x+1}$

$2^{x-3}=(2^{3})^{x+1}$

$2^{x-3}=(2)^{3(x+1)}$

By comparing exponents,

x - 3 = 3(x + 1)

x - 3 = 3x + 3

3x - x = 3 + 3

2x = 6

x = 3

3). $\sqrt{a^{5-k}}=a^{3-k}$

$a^{\frac{5-k}{2}}=a^{3-k}$

By comparing exponents,

$\frac{5-k}{2}=3-k$

5 - k = 2(3 - k)

5 - k = 6 - 2k

2k - k = 6 - 5

k = 1

4). $3^{x+3}=27^{(2x+6)}$

$3^{x+3}=(3^3)^{2x+6}$

$3^{x+3}=(3)^{3(2x+6)}$

By comparing exponents,

x + 3 = 3(2x + 6)

x + 3 = 6x + 18

6x - x = 3 - 18

5x = - 15

x = -3

5). $5^{x-2}=1$

$5^{(x-2)}=5^{0}$

x - 2 = 0

x = 2

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3 years ago

Helpp!<br> Evaluate the expression and enter your answer below.<br> 42-13

Andrews [41]

Answer - 3

In order to do this equation you would follow PEMDAS. Being as there isn’t any parentheses, multiplication, or division involved, we only need step E ( exponents) and step S ( subtraction). In the acronym, E comes before S so we multiple 4 * 4 ( if you did not know: the exponent of 2 means you would multiply the number with itself.) 4 * 4 equals 16. The equation is now 16- 13. When you subtract the two, the product is 3.

5 0

2 years ago