3 years ago

PLEASE HELP ME ITS IXL

Mathematics

1 answer:

ryzh [129]3 years ago

8 0

Answer:

first diagram

You might be interested in

R 3. The mean of 4 numbers is 8. Three of the numbers add up to 22. What is the last number?

statuscvo [17]

<h2><em><u>Solution</u></em> : </h2>

let the last number be x

we know,

$\boxed{mean = \frac{sum \: \: of \: \: all \: \: observations}{number \: \: of \: \: observations} }$

So,

$\hookrightarrow \: 8 = \dfrac{22 + x}{4}$

$\hookrightarrow \: 8 \times 4 = 22 + x$

$\hookrightarrow \: 32 = 22 + x$

$\hookrightarrow \: x = 32 - 22$

$\hookrightarrow \: x = 10$

therefore, the last number is 10.

7 0

3 years ago

(x-4) + 34 = -4x I need this answer

mote1985 [20]

The answer would be x= -6

6 0

3 years ago

The population of a city is expected to increase by 7.5% next year. If p represents the current population, which expression rep

igor_vitrenko [27]

Answer:

1.75 p

Step-by-step explanation:

if you wouldn't mind giving me brainliest, i'm just trying to rank up.

8 0

3 years ago

What is the value of n in the relationship 8n+9=-n+5

vitfil [10]

Subtract 5 from both sides.

$8n + 4 = -n$

Subtract 8n from both sides.

$4 = -9n$

Divide both sides by -9 to solve for n.

$- \frac{4}{9} = n$

The value of n is -4/9.

8 0

3 years ago

The product of , and the sum of a number and - 4 is less than or equal to 64.

lozanna [386]

Answer:

Step-by-step explanation:

3 0

3 years ago

PLEASE HELP ME ITS IXL​

PLEASE HELP ME ITS IXL