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3 years ago

7

What is the Interquartile range of these numbers

1 answer:

ra1l [238]3 years ago

3 0

20.5 is the IQR of the given set of numbers.

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The points , (−15,1) and , (−7,r) lie on a line with slope 5/4. Find the missing coordinate r. Click image to enlarge

Nadya [2.5K]

The missing coordinate r is 11.

Solution:

Given points are (–15, 1) and (–7, r).

$x_{1}=-15, x_{2}=-7, y_{1}=1 \text { and } y_{2}=7$

Slope (m) = $\frac{5}{4}$

<u>To find the missing coordinate r:</u>

Slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute the given values in the formula.

$$\frac{5}{4}=\frac{r-1}{-7-(-15)}$

$$\frac{5}{4}=\frac{r-1}{-7+15}$

$$\frac{5}{4}=\frac{r-1}{8}$

Do cross multiplication.

$8 \times 5=4(r-1)$

40 = 4r – 4

Add 4 on both side of the equation.

44 = 4r

Divide by 4 on both side of the equation.

11 = r

⇒ r = 11

Hence the missing coordinate r is 11.

6 0

3 years ago

To start a taco food truck service, a woman borrowed $7,500. If the loan was for 5 years and the amount of interest was $3187.50

Inga [223]

Answer:

The interest rate was 42.5%.

Step-by-step explanation:

8 0

2 years ago

A⋅a⋅c⋅c =

Naddik [55]

6+3 =9

The answer is 9

3 0

3 years ago

Read 2 more answers

I wanna know an integer greater than -3 but less than 3

timama [110]

Anything between -3≤x<3
Those integers can be -2,-1,0,1 or 2

7 0

3 years ago

Read 2 more answers

I’ll mark you if you get the right answer and I have another problem so if you can find it pls help!

Mrac [35]

Answer:

D

Step-by-step explanation:

1/2 * 3/4 equals 0.375 which is less than .5

.5= 1/2

so therefore, im right i guess.

5 0

2 years ago