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4 years ago

Round 65,470 to the nearest thousand

1 answer:

5 0

You have to have a number that ends with three zeros. You have to look at the number formed by the last three digits. If this number smaller or equal to 500, you round down, meaning you just replace the three digits by three zeros, if it is bigger than 500, you round up, meaning you replace the three digits by three zeros and add one to the digit of the thousands.

Here, the last three digits form the number 470 which is smaller than 500 so the nearest thousand of 65470 is 65000.

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Hi:) I need help with 11(a) , thanks!:))

Irina-Kira [14]

Answer:

18.95

Step-by-step explanation:

ln 2 x ln (4x) = 3

ln 4x = = 3 / ln 2

ln4x = 3 / 0.69315 = 4.3281

4x = e^4.328 = 75.80

x = 18.95.

7 0

4 years ago

If y varies inversely as X and Y equals 5 when x equals 3 find X when Y is 15

omeli [17]

Answer:

x = 1

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition y = 5 when x = 3

k = yx = 5 × 3 = 15, thus

y = $\frac{15}{x}$ ← equation of variation

When y = 15 then

15 = $\frac{15}{x}$ ( multiply both sides by x )

15x = 15 ( divide both sides by 15 )

x = 1

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4 years ago

What's the basic geometric term for the part of an angle where two rays begin and go in two different directions?

wlad13 [49]

<u>Answer </u>

B. Vertex

<u>Explanation</u>

A vertex is the meeting point of two rays or lines. It is also defined as the point where two or more edges meet. The rays begin and go in two different directions from the vertex.

In geometry we can say that, it is where each angular point of a polygon, polyhedron, or other figure.

5 0

3 years ago

Which is the same as 0.25?

natta225 [31]

1/4 is 0.25 as a fraction

8 0

3 years ago

Read 2 more answers

Please help me out and show work

lina2011 [118]

Answer:

$s(x)=\frac{0.2}{x+5}$

Step-by-step explanation:

In 5 liters, there is 4% salt.

Lets find liters of salt.

First, converting 4% to decimal (dividing by 100):

4% = 4/100 = 0.04

0.04 * 5 = 0.2

So, there is 0.2 liters of salt.

Now, x liters of water is added to total, so total is now:

5 + x

The concentration of salt will be amount of salt divided by amount of salt water solution.

Amount of salt = 0.2 (as seen above)

Amount of new salt water solution = x + 5

So,

Concentration of salt in new solution is $\frac{0.2}{x+5}$

2nd choice is right.

4 0

3 years ago