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3 years ago

If a is inversely proportional to x, a=15 when x=25 find the constant of variation, k

Mathematics

1 answer:

Rudik [331]3 years ago

7 0

Answer:

Step-by-step explanation:

"Inversely proportional to x" in this situation is represented by a = k/x.

Find k:

Let a = 15 and x = 25, then calculate k:

15 = k/25)

Multiplying both sides by 25 yields k = 15(25), or k = 3/5

and so a = -----------

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Write different pairs of decimals whose sums are14.1.One pair should involve regrouping.

SOVA2 [1]

So regrouping
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she wants something to take the decimals apart and whole numbers exg
10.2 +3.9=10+0.2+3+0.9=10+3+0.2+0.9=13+1.1=14.1

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3 years ago

HELP PLS GIVING BRAINLIEST

Setler79 [48]

For this case we have by definition, that the equation of a line in the slope-intersection form is given by:

$y = mx+b$

Where:

m: It's the slope

b: It is the cutoff point with the y axis

We need two points through which the line passes to find the slope:

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We found the slope:

$m = \frac {y2-y1} {x2-x1}\\m = \frac {-2-1} {1-0} = \frac {-3} {1} = - 3$

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We substitute a point to find "b":

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Finally, the equation is:

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Answer:

Option C

8 0

3 years ago

Need a little help!

zhenek [66]

Answer = 7234.6 cm cu.
Reason
Volume of sphere
V= 4/3 x TT x r^3
V = 4/3 x 3.14 x 12^3
V= 7234.56
Rounded to 7234.6

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2 years ago

(Need help) (ASAP) <br><br> Point: 18

Anastasy [175]

Answer:

Step-by-step explanation:

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2 years ago

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erma4kov [3.2K]

25 = hypothenuse
14 = opposite
Use SOHCAHTOA
Give O and H, you can use sin
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Round to hundreds
Solution: 34.06

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3 years ago