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3 years ago

Express 20 as a percent and a decimal??

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

7 0

Hopes this helps:

Answer:

Decimal: 0.2

Percent: 20%

Have a great day.

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Please help me with this question ASAP

valentina_108 [34]

Answer:

$volume \: = \: \frac{1}{2} \times 6 \times 7 \times 16 \\ = 896$

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3 years ago

I need to know the anwser

Kay [80]

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4 years ago

The amount of carbon-14 in an object is given by y = ae– 0.00012t where a is the initial amount of carbon and t is the age in ye

Reptile [31]

Answer:

The approximate age of the bone is approximately 11552 years.

Step-by-step explanation:

The current proportion of carbon-14 with respect to its original amount is defined by following formula:

$\frac{y}{a} = e^{-0.00012\cdot t}$ (1)

Where:

$y$ - Current amount of carbon-14, no unit.

$a$ - Initial amount of carbon-14, no unit.

$t$ - Time, in years.

If we know that $\frac{y}{a} = 0.25$ , then the approximate age of the bone is:

$t = -8333.333\cdot \ln \frac{y}{a}$

$t\approx 11552.453\,yr$

The approximate age of the bone is approximately 11552 years.

4 0

3 years ago

PLEASE HELP!

Marina86 [1]

Answer:

(x + 2) + (–5x + 4) / (x² – 2x + 1)

Step-by-step explanation:

(x³ – 8 x + 6) ÷ (x² – 2x + 1)

The operation can be carried out as follow:

Please see attached photo for details.

(x³ – 8 x + 6) ÷ (x² – 2x + 1) =

(x + 2) + (–5x + 4) / (x² – 2x + 1)

4 0

3 years ago

Tyler went to the grocery store and purchased cans of soup and frozen dinners. Each can of soup has 300 mg of sodium and each fr

Katena32 [7]

Answer:

Tyler purchased 10 cans of soup and 5 frozen dinners.

Step-by-step explanation:

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

Amount of sodium per can of soup = 300 mg

Amount of sodium per frozen dinner = 550 mg

They all collectively contain 5,750 mg of sodium

Tyler purchased twice as many cans of soup as frozen dinners

2. Determine the number of cans of soup purchased and the number of frozen dinners purchased.

Let s to represent the number of cans of soup Tyler purchased

Let d to represent the number of frozen dinners Tyler purchased

Let's write our equation of systems:

s = 2d (1st equation)

300s + 550d = 5,750 (2nd equation)

************************************************

Substituting s and solving for d in the 2nd equation:

300s + 550d = 5,750

300 * 2d + 550d = 5,750

600d + 550d = 5,750

1,150d = 5,750

d = 5,750/1,150

d = 5 ⇒ s = 2 * 5 = 10

Tyler purchased 10 cans of soup and 5 frozen dinners.

Let's prove d = 5 and s = 10 are correct:

300 * 10 + 550 * 5 = 5,750

3,000 + 2,750 = 5,750

5,750 = 5,750

We proved d = 5 and s = 10 are correct

3 0

4 years ago