Mathematics Middle School

(2b+12) divided by 2

Answers

Answer 1

Answer:

b + 6

Step-by-step explanation:

Answer 2

its b+6 i think because you take out the parentheses and divide 2b and 12

Related Questions

Katie draws 14 pictures in 24 minutes. At this rate, how many pictures can she draw in 312 minutes?

Answers

Answer:

Hi there! the answer should be: Katie can draw 182 pictures in 312 minutes

Step-by-step explanation:

312 ÷ 24 = 13

14 x 13 = 182

hope this helped qwq

katie can draw 182 pictures in 312 minutes.

first, we should find out how many pictures she can draw in 1 minute. 14/24 equals 0.583333... pictures per minute. 0.583333... times 312 equals 182 pictures (i used a calculator so this should be correct). hope this helps!

need help with this question.

Answers

Answer:

1. Positive

2. Negative

3. Negative

4. Positive

Step-by-step explanation:

1 positive is the answer

Ted, a supermarket employee, approached 50 random customers and asked whether they would be willing to discuss what they liked most about the store. He interviewed the 20 who said yes.

Is this a random sample of the supermarket's customers?

Answers

no it is not, a random sample would be the original 50 customers that he asked, since he only interviewed the ones that said yes, the population isn't completely random.

No, this is not a random sample.

After travelling a distance of 35km, Vijay found that km of his journey was still
left. What was the length of his whole journey ?

Answers

Answer:

how much km was left

Step-by-step explanation:

his whole journey length would be if u add both km

What is the other length of his journey because let’s say his journey was 135 km and he traveled 35 km he’s only got 100 more km to travel so you’re missing an important number here by fren

A parallelogram has one side that is 9 millimeters and one side that is 13 millimeters. What is the perimeter of the parallelogram?

Answers

Perimeter of Parallelogram: 2(a+b)

Here,

a= 9

b= 13

So,

➠ 2(9+13)

➠ 2 × 22

Ans ➠ 44mm

B= 13
A=19

Explanation- 2(9+13) = 2(22)
2*22=44mm

Keep in mind an area of a parallelogram is 2(a+b)

Lol pleaseeeeeeeeeeee

Answers

Answer:

(9,3)

Step-by-step explanation:

It’s (9,3) I think...

Can anyone help me out I will give you a brainlist if you answer right

Answers

There are a few reasons thay Tammy's
sample may not be valid. Firstly, she had a
relatively small sample size, meaning that
she had a potentially large margin of error.
Additionally, she was asking students from
her math class, which could also have
created a bias simply due to the fact that
they were currently doing math. In order to
survey a more valid sample, she should
consider student of other grade levels and
from other classes to ensure that she has
the most information possible and to create
variation in her sample.

Find area and circumference of the circle please!! I need help!!! :(

Answers

Answer:

radius r = 12 in

diameter d = 24 in

circumference C = 75.3982237 in

area A = 452.389342 in2

Step-by-step explanation:

Radius r is 12 and diameter is 24

If two sectors have an area of 12π square units, and one sector is from a circle with radius 6 units, while the other is from a circle with a radius of 4 units, how do the central angles for these sectors compare?

Answers

Answer:

Thus, the ratio of the central angles is 4 : 9.

Step-by-step explanation:

Area, A = 12 π square units

radius, R = 6 units

radius, r = 4 units

Area of sector is given by

[tex]A=\frac{\theta }{360}\times \pi r^{2}[/tex]

For first sector

[tex]12\pi=\frac{\theta }{360}\times \pi \times 6^{2}\\\\\theta = 120^{o}[/tex]

For second sector

[tex]12\pi=\frac{\theta' }{360}\times \pi \times 4^{2}\\\\\theta' = 270^{o}[/tex]

So, the ratio is

[tex]\frac{\theta}{\theta'}=\frac{120}{270} =4 : 9[/tex]

Answer:

4 : 9

Step-by-step explanation:

Given:

Two sectors, each has an area of 12pi, but with radii r1=6 and r2=4 units.

Find ratio of central angles.

Solution:

Let A = central angle

Area of a sector = pi r^2 (A/360)

Since both sectors have the same area,

pi r1^2 (A1/360) = pi r2^2 (A2/360)

simplifying

A1 r1^2 = A2 r2^2

Therefore

A1 : A2 = r2^2 : r1^2 = 4^2 : 6^2 = 4 : 9

help plzz i will give u 15 points if u answer

Answers

the believe the answer is 1085.78. i apologize if it’s wrong.

Your answer is 1085.75

true or false signals from the peripheral devices are carried to CPU a long control bus circuits

Answers

Answer: true

Step-by-step explanation:

Help question is in the pic PLEASE EXPLAIN HOW YOU GOT THE ANSWER!

Answers

Answer:

Step-by-step explanation:

Answer:

Part A is 64

Step-by-step explanation:

i dont know part B yet

Help please. Geometry.

Answers

14(180)-2 and that should be your answer hope that helps!! :)

I’m not a expert but I thinks it’s The first one

Someone help me with this immediately

Answers

for question 1

Area of Base B =45×25 = 1125 cm²

perimeter of base P = 2(45+25) = 140 cm

Height = 15 cm

Using the formula

Surface area = 2B + Ph

A = 2×1125 + 140×15= 4350 cm²

Voume = Bh = 1125×15= 16875 cm³

For question 2,

Area of base = 7× 5/2= 17.5 cm²

Perimeter of base = (7+7+7) = 21 cm

Surface area = 2B + Ph

Surface area of prism = 2×17.5+ 21×10 = 245cm²

Volume = Bh = 17.5×10 = 175 cm³

Answer:

Step-by-step explanation:

for question 1

Area of Base B =45×25 = 1125 cm²

perimeter of base P = 2(45+25) = 140 cm

Height = 15 cm

Using the formula

Surface area = 2B + Ph

A = 2×1125 + 140×15= 4350 cm²

Voume = Bh = 1125×15= 16875 cm³

For question 2,

Area of base = 7× 5/2= 17.5 cm²

Perimeter of base = (7+7+7) = 21 cm

Surface area = 2B + Ph

Surface area of prism = 2×17.5+ 21×10 = 245cm²

Volume = Bh = 17.5×10 = 175 cm³

What is the value of F ?

Answers

Answer:

50 degrees

Step-by-step explanation:

Answer:

Step-by-step explanation:

The entire angle is 80 as shown.

The value of the missing angle can be found by using the following

F=80-30

F=50

please help me, i need is asap

Answers

Answer:

Step-by-step explanation

180-(114+47)=19

find area and circumference of the circle (12.) pls NO links

Answers

Answer:

The area is 452.39

The Circumference is 75.36

Step-by-step explanation:

Area - 452.39
Circumference - 75.4

PLEASE ANSWER I WILL GIVE BRAINLIEST!! (trolls get banned)

Answers

Answer:

LMK is 30

Step-by-step explanation:

inside the triangle, the LMN is the equation 3x=90degrees

under the KN is 4x

on the left is 150dgrees = 5x

3x+4x+5x=360

add the x's together

12x=360

divide

x=30

LMK= 150-90/2=60/2=30

PLS HELP ME, I NEED TO ANSWER THIS IN 15 MINUTES!!!

Answers

amy:
8 + 5 + 6 + 11 + 4 + 6 +8 = 48
48 divide by 7 = 6.85

chelsea:
7 + 9 + 5 + 3 + 10 + 5 + 8 = 47
47 divide by 7 = 6.71

amy runs more on average.

both mean !

Answer:

Amy

Explanation:

Because add all of the numbers and divide by 7.

The measure of center I would use for Amy is 6 because it is higher than half of the numbers and lower than half of the numbers.What I would use for Chelsea is 7 because of the same reason.

A tree in John's backyard has been growing for 4 1/2 years. The tree is 4/5 meters tall. What is the unit rate in meters per year? No links or I will report. Answer in a fraction or mixed number in simplest form or whole number. Answer fast please.

Answers

Answer:

5 127/200 meters

Step-by-step explanation:

4 1/2 = 4 5/10 | 4/5 = 8/10

--------------------------------------

4 5/10 = 4.5 | 8/10 = 0.8

--------------------------------------

4.8 divided by 0.8 = 5.625

--------------------------------------

5.635 = 5 635/1000

635/1000 divided by 5 = 127/200

--------------------------------------

5 + 127/200 = 5 127/200

The unit rate in meters per year is 8/45 meter/year.

Given that, a tree in John's backyard has been growing for [tex]4\frac{1}{2} = \frac{9}{2}[/tex] years. The tree is 4/5 meters tall.

What is the unit rate?

Unit rate can be defined as the ratio between two measurements with the second term as 1. It is considered to be different from a rate, in which a certain number of units of the first quantity is compared to one unit of the second quantity.

Now, unit rate = 4/5 ÷ 9/2

= 4/5 × 2/9

= 8/45 meter per year

Therefore, the unit rate in meters per year is 8/45 meter/year.

To learn more about the unit rate visit:

https://brainly.com/question/11258929.

#SPJ2

What is the range of possible sizes for side x?

Answer correctly and I will give you brainlist

Answers

Answer:

1.3 < x < 6.7

Step-by-step explanation:

minimum

4.0 - 2.7 = 1.3

maximum

4.0 + 2.7 = 6.7

-------------------------

1.3 < x < 6.7

Not sure sorry

Explanation:

Answers

Answer:

9 1/4

Step-by-step explanation:

12 3/8 - 3 1/4= 9 1/4

9/1/4 fanfic fiddle djdndidncjfudndidorndiendkrn

An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, the altitude cuts the base into two equal segments. The length of the altitude is 30 inches, and the length of the base is 10 inches. Find the triangle’s perimeter. Round to the nearest tenth of an inch.

Answers

Perimeter = 78.7 inches
Step-by-step explanation:
From the given question, applying the Pythagoras theorem to one of the congruent triangles formed, we have;
= +
= +
=841 + 81
= 922
hyp =
= 30.3645
The perimeter of the triangle can be determined as;
perimeter = + +
= 30.3645 + 18 + 30.3645
= 78.729
The perimeter of the triangle = 78.7 inches

The perimeter of the triangle is 70.82 inches.

Given as :

The length of the altitude is 30 inches, and

The length of the base is 10 inches

What is right triangle?

Right triangle is defined as a triangle which one angle is a right angle or two sides are perpendicular.

Let, perpendicular = 30 and base = 5

According to Pythagoras theorem,

A right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

perpendicular² + base² = hypotenuse²

Substitute the values,

30² + 5² = hypotenuse²

900 + 25 = hypotenuse² or

hypotenuse² = 925

hypotenuse = √925

hypotenuse = 30.41

The perimeter of the triangle can be determined as:

Perimeter of the triangle = l₁ + l₂ + l₃

Perimeter of the triangle = 30.41+ 10 + 30.41

Perimeter of the triangle = 70.82

Hence, the perimeter of the triangle is 70.82 inches.

Learn more about right triangle here:

brainly.com/question/6322314

#SPJ2

Multiply

132.71 x 10 with the power of 2

Answers

Step-by-step explanation:

132.71 x 10 with the power of 2 = 13271

Hurry Asap I Will Give Brainliest!!

Answers

Answer:

3, 4

Step-by-step explanation:

Answer: 3 and 4
Step by step

Point M (2,4) was dilated to M'(9,18). What was the scale factor, and was the dilation an enlargement or reduction? Please hurry! this is due tomorrow

Answers

Answer:

the scale factor was 9/2 or 4.5

please mark brainliest <3

I WILL GIVE BRAINLIEST

Answers

Answer:

yes

Step-by-step explanation:

Bret is right your welcome

Ally sliced 32kg of watermelon for a party. She divided the watermelon slices equally between 8 large bowls.
How many grams of watermelon did Ally put in each bowl?

Answers

Answer: 4000 Grams

(Edited! I was wrong!)

Step-by-step explanation:

32 divided by 8 is 4. Add the units, and youre done! (x1000 bc 1000 kg are in a gram)

Answer:

4000g

Step-by-step explanation:

32kg=32000g

32000/8 bowls=

4000g

NEED HELP FASTT!

Jayden is trying to find the volume of his closet to see how much can fit inside. If the area of the floor is 14 square feet, and the closet is 612 feet tall, what is the volume in cubic feet?

Answers

Answer:

8568 ft³

Step-by-step explanation:

14 x 612 = 8568 ft³

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

14x612 =8568 cubic feet. Just multiply both numbers

There are 6 boys and 8 girls in a classroom. What is the probability that the teacher randomly selects a boy

Answers

Answer:

3/7 is the probability that the teacher will randomly select a boy.

Hope this helps! :)

The probability that the teacher randomly selects a boy is 3/7

How to determine the probability?

The given parameters are:

Boy = 6

Girls = 8

The total number of students is:

Total = 6 + 8 = 14

The probability of selecting a boy is:

P(Boy) = 6/14

Simplify

P(Boy) = 3/7

Hence, the probability that the teacher randomly selects a boy is 3/7