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Hunter-Best [27]

3 years ago

10

Whats 7/12 divided by 2

2 answers:

mel-nik [20]3 years ago

4 0

Answer:

7/24

Step-by-step explanation:

IceJOKER [234]3 years ago

4 0

Answer:

7/12×1/2

7/24

0.291

hope this is correct

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A group of 20 students attempting a mathematical challenge have an average age of 11.When their teacher is included their averag

miss Akunina [59]

Answer:

Teacher's age is 32.

Step-by-step explanation:

How you count the average age for people is:
(age of person 1 + age of person 2 ... ) / number of people = average age

Let's start by observing that we've got 2 equations coming from the text:

average of just students
20 students x 11 (average for a student) = sum of age of students
20 x 11 = 220
average of student and teacher
let's say x is age of teacher
together students & teacher is 20 + 1 = 21 people
(20 students x 11 + x)/ (20 + 1) = 12
(220 + x) / 21 = 12
220 + x = 12 * 21
x = 12 *21 - 220
x = 252 - 220
x = 32

hope this helps ❣️

7 0

1 year ago

Find the coefficient of (2y-y)(y-6)

Tasya [4]

Answer:

y²-6

Step-by-step explanation:

(2y-y)(y-6)

= y*(y-6)

= y²-6

5 0

3 years ago

Give 0.02039 correct to a) three decimal figures b) three significant figures

yarga [219]

3 decimal places: 0.0204 ✡ ✶✶ ✧ ✺

3 significant figures: 0.02 ▵ ✩ ✮

I hope it helps!

$*VirtuosoTeen*$ ✮ ✦ ✮ ✫

$*JoyfulGirlie*$ ✴︎ ✳︎ ❅ ❅ ❄︎

❄︎ ❄︎ ❄︎

8 0

3 years ago

Read 2 more answers

Katie bought 4 sweaters that each cost the same amount and 1 skirt that cost $20. the items she bought cost a total of 160$. wri

Rufina [12.5K]

Answer:

160-20=140. 140/4=$35.

4 0

3 years ago

2x + 3y = 40<br>5x + 2y = 30

Andrew [12]

●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●

Hi my lil bunny!

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A) Let's solve for x. $2x + 3y = 40$

Step 1: Add -3y to both sides.

$2x + 3y + -3y = 40 + -3y$

$2x = -3y + 40$

Step 2: Divide both sides by 2.

$\frac{2x}{2} = \frac{-3y + 40}{2}$

$x = \frac{-3}{2} y + 20$

Answer : $\frac{-3}{2} y + 20$

~~~~~~~~~~~~~~~~~

B) Let's solve for x. $5x + 2y = 30$

Step 1: Add -2y to both sides.

$5x + 2y + -2y = 30 + -2y$

$5x = -2y + 30$

Step 2: Divide both sides by 5.

$\frac{5x}{5} = \frac{-2y + 30}{5}$

$x = \frac{-2}{5} y + 6$

Answer : $\frac{-2}{5} y + 6$

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Hope this helped you.

Could you maybe give brainliest..?

❀*May*❀

7 0

4 years ago

Read 2 more answers