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3 years ago

13

If you order a set of numbers from least to greatest, the middle number is the median. Find the median of the following set of n

umbers.
0.556 , 3/5 , 6.5% , 1/6 , 5/8

1 answer:

Lesechka [4]3 years ago

8 0

Put them all into decimals
0.556, 0.6, 0.065, 0.1667, 0.625
Put them in increasing order
0.065, 0.1667, 0.556, 0.6, 0.625
the median is 0.556

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What is the inverse of the function f(x) = 2x – 10?

posledela

Hey there!!

f(x) is basically ' y '

In order to inverse a equation, we will need to switch the values of x and y

The equation :

$y = 2x - 10$

Now switching the positions :

$x = 2y - 10$

$x + 10 = 2y$

$y = \frac{x+10}{2}$

$y = \frac{x}{2} + 5$

This is the inverse.

Hope my answer helps!

6 0

3 years ago

Read 2 more answers

Find S^20 if the series 1 + 1.1 ..... is a (a) arithmetic (b) geometric

quester [9]

I'm guessing S^20 is actually referring to the 20th partial sum $S_{20}$ , with

$S_{20}=1+(1+1\times0.1)+(1+2\times0.1)+\cdots+(1+18\times0.1)+(1+19\times0.1)$

in the arithmetic case, and

$S_{20}=1+1.1+1.1^2+\cdots+1.1^{18}+1.1^{19}$

in the geometric case.

(a) Combining like terms, we have

$S_{20}=20+0.1(1+2+\cdots+18+19)$

and invoking the formula

$1+2+\cdots+(n-1)+n=\dfrac{n(n+1)}2$

we end up with

$S_{20}=20+0.1\dfrac{19\times20}2=39$

(b) Multiply $S_{20}$ by 1.1, then subtract this from $S_{20}$ :

$1.1S_{20}=1.1+1.1^2+1.1^3+\cdots+1.1^{19}+1.1^{20}$

$S_{20}-1.1S_{20}=-0.1S_{20}=1-1.1^{20}$
$\implies S_{20}=\dfrac{1.1^{20}-1}{0.1}\approx57.275$

7 0

3 years ago

Plz help, I promise I will give brainliest

Vadim26 [7]

Answer:

Graph shifts five units down.

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Cant find the answer

dedylja [7]

Answer:

Carter family = 25 hours

Davis family = 31 hours

Step-by-step explanation:

Let's say the number of hours the Carter family used their sprinkler is x and the number of hours the Davis family used their sprinkler for is y.

So combined:

x + y = 45 hours

and we are also told that:

40x + 15y = 1300 L

So we can do simultaneous equations to solve the problem.

With some rearranging, we can figure out that:

y= 45 - x

and by substituting that into the second equation:

40x + 15 (45 -x) = 40x + 675 - 15x = 1300L

25x = 1300 - 675

25x = 625

x = 25 = hours that the Carter family used their sprinkler

and we can substitute that back into the original equation to find how many hours the Davis family used their sprinkler so:

25 + y = 56

y = 31

The Davis family used their sprinkler for 31 hours whilst the Carter family used their sprinkler for 25 hours.

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2 years ago

Rachel finished 3/4 of the race in 6 hours. How long was the entire race?

Ugo [173]

The answer is a total of 9 hours

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2 years ago