Mathematics Middle School

can somebody explain how to get the answer/ what formula, and the answer??

Answers

Answer 1

Answer:

9 cm

Step-by-step explanation:

divide the total circle centimeter which is 18 in half. Half of 18 is 9 so the diameter is 9.

Answer 2

Answer:

R = 9 cm

Step-by-step explanation:

C = 2ПR

Also C = 18П сm

2ПR = 18П

R = 18П/2П = 9 сm

Related Questions

Evaluate 8.3v + 7.5w when v = 3 and w = 4

Answers

Answer:

54.9

Step-by-step explanation:

8.3 * 3 = 24.9

7.5 * 4 = 30

24.9 + 30 = 54.9

the answer would be 54.9

8.3(3) + 7.5(4)

24.9 + 30 = 54.9

What is m∠JKL? Enter your answer in the box.

Answers

Answer:

m<JKL = x - 10.

Step-by-step explanation:

dont really have an explanation x

The measure of angle JKL in the triangle JKL is 54°.

What is a triangle?

A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.

From the given figure line segments JM and ML are of equal measure as the line segment KM bisects JL and hence bisects the vertex angle.

Therefore,

2x + 5 = 3x - 6.

2x - 3x = - 6 - 5.

- x = - 11.

x = 11.

Now, m∠JKL = 2m∠JKM = 2m∠LKM.

So, m∠JKL = 2[2(11) + 5]°.

= 2(22 + 5)°.

= 2(27)°.

= 54°.

learn more about triangles here :

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what is (2^6 x 9^6) ÷ 18^14 equivalent to?

Answers

Answer:

9.074x10⁻¹¹

Step-by-step explanation:

First - PEMDAS, doing what is in the parentheses first

Second - PEMDAS, doing the exponents, 2⁶, 9⁶ (keeping those inside the parentheses)

Third - multiply the solutions inside the parentheses, 64x531441

Fourth - solve 18¹⁴ = 3.748x10¹⁷

Fifth (final) - divide 34012224/3.748x10¹⁷ = 9.074x10⁻¹¹

9.074x10 ^11 hope this helps

The right triangle on the right is a scaled copy of the right triangle on the left. Identify the scale factor. Express your answer in simplest form.

Need the answer ASAP

Answers

Answer:

Step-by-step explanation:

the scale is 3.8

hope this helps and sorry if i’m wrong

−3(n + 4) = 15 What is the n?

Answers

n = -9

-3 x n + -3 x 4 =

-3n + -12 = 15

-3n -12 = 15

-12 -15 = 3n

-27 = 3n

n = -9

The answer is N= -9, ;)))

Add. Use models if needed.
PLZ HELP I WILL GIVE BRAINLIEST!!
PLZ EXPLAIN

Answers

Step-by-step explanation:

1. 3x+5+4x-1

7x+4

2. 5x-3-2x+1

3x-2

3. -7x+4-5x-12

-12x-8

4. 4x-10-5x-2

-x-12

plz mark brainliest

HELP ME PLEASE THANK YOU SO MUCHHHHHHHHHH

Answers

Answer:

Step-by-step explanation:

can i get the brainlieat answer please

Answer:

NONE OF THESE

Step-by-step explanation:

HOPE I HELPED!!!!!

HAVE A WONDERFUL WEEKEND

Suppose you go out to eat with a friend and your bill was $25.67. The local sales tax rate is 7% and you want to leave a 20% tip for the waitress. Calculate the sales tax of $25.67. [tax] *
Your answer

Answers

The final total would be $32.96

Answer:

6.9309

Step-by-step explanation:

add 20% + 7% =27% times $25.67

Pls hurry
What is the answer just say A,B,C, or D thank you

Answers

Answer:

Step-by-step explanation:

I think B but I havent done this in awile....im so sorry!!!

it’s D

use whichever method you’re taught to find x then plug into the other equations x to find y

20POINTS
Parallel lines r and s are cut by two transversals, parallel lines t and u. Lines r and s are crossed by lines t and u to form 16 angles. Clockwise from top left, at the intersection of r and t, the angles are 1, 2, 3, 4; at the intersection of s and t, 5, 6, 7, 8; at the intersection of u and s, 9, 10, 11, 12; at the intersection of u and r, 13, 14, 15, 16. Which angles are corresponding angles with angle 8?

Answers

Answer:

s and r

Step-by-step explanation:

The required angle is the corresponding angle of angle 8 which are ∠4, ∠12, and ∠16.

What are the angle?

Orientation of the one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as the angle.

Here,
Parallel lines r and s are cut by two transversals, parallel lines t and u.
And 16 angles are formed
Now,
The angle formed by r and t, = 1, 2, 3, 4
The angle formed by s and t, = 5, 6, 7, 8
The angle formed by s and u, = 9, 10, 11, 12
The angle formed by r and,u = 13, 14, 15, 16

Thus, the required angle is the corresponding angle of angle 8 which are ∠4, ∠12, and ∠16.

Learn more about Angles here:

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To make 8 cups of tomato soup you need 2 pounds of tomatoes. How many pounds of tomatoes do you need to make 32 cups of soup? Show your work using one of the 5 strategies (table)

Answers

Answer:

Step-by-step explanation:

First, divide 32 and 8

32/8=4

Now, multiply 4 and 2

4x2=8

(Hope this helps!)

2/8=1/4 which means you need 1/4 of a pound to make one cup. So then multiply 1/4 by 32 which equaled 8 so your answer is 8

UMM IAM I RIGHT IF NOT WHATS THE ANSWER GIVING BRAINLIESTT!!!

Answers

Your right because 110 divided by 11 is 10 no 67 can not be divided by 11 so you are right

help me pls i will make u a brainliest

Answers

Answer:

14.784

Step-by-step explanation:

Answer:

Box 1: 924 Box 2: 13,860 Total: 14784 Answer: 0.14784

Step-by-step explanation:

HELP MEH !!!,!,!!!!,!,!

Answers

Answer:

I believe it B 6s + 48= 258

Step-by-step explanation:

Do 6*35 and you get 210. Then add the 48 to get 258

So the one you need to pick is

6s + 48 = 258

I hope this helped :)

Help. You can answer one or all of them.

Answers

the answer to the second one is

- as likely to happen as not

The second one

H
O
P
E

It
H
E
L
P
S

Micah’s bill for dinner was $35.50. He left the server an 18% tip. What is the total amount that Micah paid for dinner including the tip?

Answers

Answer:

$41.89

Step-by-step explanation:

Can I get brainliest please?

$41.89 would be the total because 18% of 35.50 is 6.39, and 6.39+35.50 is $41.89

Elena has 20 apples and 35 crackers for making snack bags. She wants to make as many snack bags as possible and wants each bag to have the same combination of apples and crackers. What is the largest number of snack bags she could make?

Answers

Answer: 5 because it is the greatest common factor

I think the answer is 5 because 5 is the greatest common factor.

The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than an unknown number of inches.

Two students are told that the perimeter of this rectangle is at least 30 inches. The first student says, "The length of the long side must be at least 13 inches". The second student says, "The unknown number must be at least 10 inches". Which of the following statements is true?

The first student is correct.
The second student is correct.
Both students are correct.
Neither student is correct.

Answers

first student is correct

I think the a: the second student because the total on the to long sides of the rectangle has to be the same and 10x2= 20 and the other 2 sides is 5 5x2= 10 which gets a total of 30 inches

HELPPP! ALMOST DUE! Clara estimated that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s actual height is 4 feet, 2 inches. What was the percent error for Clare’s estiamate? PLZ HELP!!!

Answers

Answer:

Her error in terms of inches was 2 inches while her percent error was 4.166%

Step-by-step explanation:

From the given data Claire estimated her brother to be shorter than he actually was. She estimated his height to be 4 feet while it was actually 4 feet 2 inches.

We convert the feet into inches because 12 inches are equal to a feet.

4 feet = 4 × 12 inches = 48 inches

4 feet 2 inches = (4 × 12 inches) + 2 inches = 48 + 2 = 50 inches

Error in terms of inches = 50 inches - 48 inches = 2 inches.

Step 2 ; Her percent error is given by dividing the difference in values by the actual value multiplied by 100.

% error = (difference in values / actual value) × 100

Claire's % error = (50 - 48)/ 48 × 100 = 2/48 × 100 = 0.04166 × 100 = 4.166%

Answer:

A 4% difference

Step-by-step explanation:

Convert 4 feet 2 into 4.16666666

4/4.16666666= 0.96 or 96%

4 feet was 96% of 4 feet 2 in

100 - 96= 4%

And this shows that there was a 4% error.

Hope it helped!

In a survey of 2,600 people who owned a certain type of car, 780 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?

Answers

Answer:

30%

Step-by-step explanation:

the answer for this is 30%

What is the sum of -4/7 and 6/7?

A. -2/7
B. 2/7
C. -10/7
D. 10/7

Answers

Answer:

i think its b. because you would line them up and you never subtract the denominator.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Because you add -4 and 6 together to get a numerator of 2, then you keep the same denominator,7, to get 2/7.

Help me with this question, please

Answers

Answer:

Step-by-step explanation:

B
Because I have a big brain

The table below represents how much money Jaycee earns babysitting.

Hours

Worked Income

($) (income)
6 | 45.00
9 | 67.50
11 | 82.50
18 | 135.00

How much did Jaycee receive per hour?
$6.00
$7.50
$13.50
$4.50

Answers

Answer:

$7.50

Step-by-step explanation:

You can figure this out by taking the amount of money made and dividing it by the hours worked. 45/6 = 7.50. 67.50/9 = 7.50 etc

Which of the following ratios is equivalent to 2 : 3?
A. 1/2 B. 4/6 C. 12/13 D. 20/25

Answers

Answer:

Step-by-step explanation:

4/6=2/3

Hope this helps!

Answer:

The answer is 4:6

Step-by-step explanation:

2:3 x 2/2 = 4:6

please answer all!! 7th grade math.

Answers

Answer:

8 is -7 and 9 is 108

Step-by-step explanation:

sorry that im late

In the state of Texas, about 3/100 of the population lives in the city of Fort Worth. The population of Houston, Texas is about 3 times the population of Fort Worth, Texas.

What fraction of the population of Texas lives in Houston? Move a number or a symbol to each blank to show the equation. If there’s no whole number in the answer, put a 0 in the first box after the equals sign.

Answers

Answer:

9/100

Step-by-step explanation:

3/100 times 3 is 9/100

Answer: 9/100

Step-by-step explanation:

1.Lin and her brother each created a scale drawing of their backyard, but at different scales. Lin used a scale of 1 inch to 1 foot. Her brother used a scale of 1 inch to 1 yard. Whose drawing is larger?

2.How many times larger is Lin's drawing than her brother's drawing? You are being asked to compare the size of the areas of the drawings.

Answers

Answer:Part 1) The scale for the drawings without units are 1/12 and 1/36

Part 2) The scale drawing 1/12 is 3 times larger than the scale drawing of 1/36. The explanation in the procedure

Step-by-step explanation:we know that

1) Lin used a scale of

Remember that

1 ft=12 in

substitute in the scale

That means ----> 1 unit in the drawing represent 12 units in the actual

2) Her brother used a scale of

Remember that

1 yd=36 in

substitute in the scale

That means ----> 1 unit in the drawing represent 36 units in the actual

therefore

The scale for the drawings without units are 1/12 and 1/36

Part 2) Whose drawing is larger?

The scale drawing 1/12 is larger than the scale drawing of 1/36

To find out how many times as large is the scale 1/12 than the scale of 1/36

Divide 1/12 by 1/36

The scale drawing 1/12 is 3 times larger than the scale drawing of 1/36

Explanation

Let supposing that we want to represent in the drawing a measure that in its real size measures 36 units.

In the scale of 1/12, the drawing will show a measure of 3 units (remember 3(12)=36 units).

At the 1/36 scale, the drawing will show a measurement of 1 unit (remember 1(36)=36 units).

Therefore the largest drawing will be with a scale of 1/12.

U can do it let’s go

please please help, thanks!

Answers

Answer:120 is the area to the nearest unit

Step-by-step explanation:

Jynessa wants to order these fractions: StartFraction 4 over 9 EndFraction, two-thirds, one-sixth, Negative 2 and one-half. What should she use as her common denominator? 6 9 12 18

Answers

Answer:

Step-by-step explanation:

hope this helpssss :)

Answer: 12

Step-by-step explanation:

kevin can travel 22 1/2 miles in 1/2 hour. what is his average speed in miles per hour

Answers

Answer:

His average speed is 67.5 mph.

Step-by-step explanation:

I hope this helps.

Answer:

45 mph

Step-by-step explanation:

I just multiplied the 22 1/2 because of the half an hour

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