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3 years ago

Six less than a number is the same as 3 more than twice the number

Mathematics

2 answers:

PSYCHO15rus [73]3 years ago

4 0

I think it is n - 6 = 2n + 3

Nataly_w [17]3 years ago

4 0

The answer is n-6 = (n*2)+3...just tell me if you need it more explained

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♡Easy Brainliest♡ Which statement BEST explains why the sine of an acute angle is equal to the cosine of the angle's complement?

Aleonysh [2.5K]

Answer:

Answer is A

Step-by-step explanation:

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3 years ago

A right rectangular prism has a volume of 40 cm3. Find the new volume of the prism if only the length of the prism is doubled.

iVinArrow [24]

Well we know that:
Volume = l×w×h
so that means:
40 = l×w×h
Well if the length is doubled that means
New Volume = 2l×w×h or
New Volume = 2×l×w×h
Well since we know from our original equation that 40 = l×w×h, we can substitute it into this new volume equation
New Volume = 2×l×w×h
New Volume = 2×(40)
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3 years ago

Describe the graph of the function at its roots.

irina [24]

Answer: At x = 2 the graph crosses the x-axis

Step-by-step explanation:

8 0

3 years ago

a town park has 2 biking trails. Marsh Trail is 5 and three over ten miles long. Woodland trail is 2 and 4 over 5 miles long. Ho

Allisa [31]

Marsh Trail is longer than Woodland trail by 2.5 miles

Step-by-step explanation:

A town park has 2 biking trails

1. Marsh Trail is 5 and three over ten miles long

2. Woodland trail is 2 and 4 over 5 miles long

We need to find that Marsh Trail is how much longer than

Woodland trail

To do that we will subtract the length of the Woodland trail from the

length of the Marsh Trail

∵ The length of Marsh Trail is 5 and three over ten miles

- 5 and three over ten = $5\frac{3}{10}$

∵ $\frac{3}{10}$ = 0.3

∴ $5\frac{3}{10}$ = 5.3 miles

∵ The length of Woodland trail is 2 and 4 over 5 miles

- 2 and 4 over 5 = $2\frac{4}{5}$

∵ $\frac{4}{5}=\frac{4*2}{5*2}=\frac{8}{10}$ = 0.8

∴ $2\frac{4}{5}$ = 2.8

∴ The difference = 5.3 - 2.8

∴ The difference = 2.5 miles

Marsh Trail is longer than Woodland trail by 2.5 miles

Learn more:

You can learn more about fractions and decimals in brainly.com/question/1648978

#LearnwithBrainly

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3 years ago

A box of books has a mass of 4.10 kilogram for ever meter of its height a box of magazines has a mass of 3 pounds for every foot

Tju [1.3M]

No rounding is necessary to answer the question.

We can subtract the (linear) density of the second box from that of the first to see which box is heavier per unit height.

$\dfrac{4.10\,kg}{1\,m}-\dfrac{3\,lb}{1\,ft}=\dfrac{4.10\,kg}{1\,m}\cdot\dfrac{1\,lb}{0.45\,kg}-\dfrac{3\,lb}{1\,ft}\cdot\dfrac{3.28\,ft}{1\,m}\\\\=\dfrac{4.10\,lb}{0.45\,m}-\dfrac{3\cdot 3.28\,lb}{1\,m}=\dfrac{4.10-3\cdot 3.28\cdot 0.45}{0.45}\dfrac{lb}{m}=\dfrac{4.10-4.428}{0.45}\dfrac{lb}{m}$

This value is obviously less than zero, so ...

... the box of magazines has the greater mass per unit height.

_____

The question didn't ask for the mass per height, and we didn't compute it. All we did was make a conversion to comparable units. The units we ended up with are mixed English and metric units, but that doesn't matter for the purpose of comparison.

Since all we're really interested in is <em>the sign of the difference</em> of mass/height, we don't even need to actually compute that difference. We just need to do enough computation to be able to tell whether the sign is positive or negative.

3 0

4 years ago