Mathematics Middle School

Sophie is 3.5 years younger than her brother. She knows that when she is b years old, her brother is b+3.5 years old. Right now, Sophie is 11.5 years old.
How old is Sophie's brother?
Write your answer as a whole number or decimal.

Answers

Answer 1

Sophie's Brother's Age : b+3.5 years old

Sophie's Age : b years old

                       = 11.5

Sophie's Brother's Age = 11.5 + 3.5

                                       = 15 years old

Hence, Sophie's brother is 15 years old.

Hope this helps :)
P.s. Can you mark me as the Brainliest? :]

Related Questions

What are the coordinates of the point shown above?

PLZ HELP

Answers

Answer:

the coordinates of the point are: (0;-2)

bottom is a positive 2 and left is a positive 0

Which THREE side lengths CAN NOT make a triangle
11m, 11m, and 12m

5m, 7m, and 8m

6m, 10m, and 21m

Answers

Answer: 6m, 10m, and 21m

Step-by-step explanation:

The two smaller sides have to add to be greater than the third side. 6+10 is 16 which is smaller than 21.

Answer: D. 21cm  

Step-by-step explanation: because you divide all sides by 2 then get youe slope form and multiply by seven

please help me and make it fast.

Answers

Answer:

[tex]Accept = 69.44\%[/tex]

[tex]Reject = 11[/tex]

Step-by-step explanation:

Given

See attachment for dataset

Solving (a): Percentage to accept

The percentage to accept are flea collars that range between 14mg to 16mg (inclusive)

From the attachment, we have:

[tex]Total = 36[/tex]

[tex]n(14mg-16mg) =25[/tex] --- Number of 14mg to 16mg

So, the percentage to accept is:

[tex]Accept = \frac{n(14mg-16mg)}{Total} * 100\%[/tex]

[tex]Accept = \frac{25}{36} * 100\%[/tex]

[tex]Accept = 0.6944 * 100\%[/tex]

[tex]Accept = 69.44\%[/tex]

Solving (b): Collars to reject

In (a), we have:

[tex]n(14mg-16mg) =25[/tex]

The number to reject is then calculated by subtracting the collars to accept from the total (this is called complement rule)

So, we have:

[tex]Reject = Total - n(14mg - 16mg)[/tex]

[tex]Reject = 36 - 25[/tex]

[tex]Reject = 11[/tex]

11 will be rejected

Jordan buys a notebook for himself and
each of 4 friends. Each notebook costs
$1.85. Make a table to find the cost of
5 notebooks.

Please hurry! (draw the table and attach pic)

Answers

Answer:

Step-by-step explanation:

I think this is how you do it. One the side where it says the 4 friends + 1. I couldn’t write anything else so you can change it up.

*Correct me if I’m wrong*

The price of each notebook is $1.85 then the price of 5 notebooks will be equal to $9.25.

What are arithmetic operations?

The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.

They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.

As per the given data in the question,

Price of each notebook = $1.85

Number of notebooks to buy = 5

Then, the total price of the notebook will be,

= 5 × 1.85

= $9.25

To know more about arithmetic operations:

https://brainly.com/question/13585407

#SPJ2

What is the value of x in this equation?

-6x = 72

Answers

X= -12 bc (-12)(-6)=72
-6x=72 which is the value of x

PLEASE ANSWER PWEASE

Answers

the answer is d i think. i’m not sure tho
Answer Varified and you know that what they say about it and how much you have done for church

HELP QUICK... I NEED THIS FOR MATH

Answers

Answer:

41,500

Step-by-step explanation:

just do subtraction

(113,000 - 71,500)

The answer would be 45,500

help, please! instructions in the picture:

Answers

Answer:

x = 2

Step-by-step explanation:

10/5 = 2 so it would look like this

2 4 6 8 10

1  2 3 4 5

Answer:

x=2

Step-by-step explanation:

x= 2,4,6,8,10

y= 1,23, 4 ,5

The answer is like that because the digits on y are each multiplied by 2. For example, 1x2=2, 2x2=4, 3x2=6, 4x2=8, 5x2=10.

Solve the system using substitution. Show your work.
x = -4y + 9
x - y = 4

Answers

Answer:

please what should we found? is it the value of ×or y

x = -4y + 9
x - y = 4

- rearrange the second equation to x = 4 + y
- then we can plug it into x for the first equation

4 + y = -4y + 9 — then we solve for y
y = -4y + 5
5y = 5 -> y = 1

we can then plug in 1 (our y value) into the original second equation.

x - 1 = 4 -> x = 5

x = 5 & y = 1
you should put it in a coordinate layout so:
(5,1)

hope this helped !!

Gary's car travel 30 miles on 1 1/5 gallon of gas. Gary wants to travel 90 miles. How many gallons of gas will his car use?

Answers

Gary car will use 18 miles/gallons

Find the length of the segment indicated. Round your answer to the nearest tenth if necessary

Answers

okay so we know that a circle is 360°

the one angle is 135 degrees and to find the other one we can just subtract 360 - 135

the other angle is 225°



we can set it up as:

12 yd x
——— = ——-
225 135


to find x, cross multiply 135 and 12 which gives you 1,620
1,620 / 225 = 7.2

the other angle is 7.2 yards!

What are 4 equivalent expressions for 6( y - 1 )?

Answers

1. 6y-6
and that’s the only one i know

Answer: (6y-6

Step-by-step explanation:

69 points, but i think its cut in half for you
b) Your father uses text messaging to communicate with his employees. If he sends an average of 19 text messages each day, how many more text messages does he send than you? Write an equation and solve for the unknown value. (2 points)

Answers

Answer:

20 messages

Step-by-step explanation:

Answer:

way more than me

Step-by-step explanation:

Help pls and no links

Answers

Answer:

55

Step-by-step explanation:

First find the ratio to the second 5/1 object then multiply 5 by 11

47cm should be right

Liz wants to buy a new cell phone. If she buys one now, it will cost $462.00. If Liz waits until her contract is over, she can upgrade to the same phone for $415.00. How much can Liz save if she waits?

Answers

Answer:

she would save $47 if she waited.

Step-by-step explanation:

She would save $47 if she waited because 462-415 is 47

20 points <3
If the problem ask you to find the distance around a circle, which
formula should you use?
A. r = 1/2d
B. C = md
C. d = 2r
D. A = mr

Answers

Answer:

d=2r

Step-by-step explanation:

edge 2020

p.s. pls mark brainliest, and have a good day! :)

C is the correct answer

Which two winding rates represent a unit rate 2/3 of foot per second?

Reel V winds 1/4 foot in 3/8 second.


Reel W winds 2/5 foot in 1/3 second.


Reel X winds 1/3 foot in 12 second.


Reel Y winds 5/6 foot in 5/9 second.


Reel Z winds 1/2 foot in 1/6 second.

Answers

Answer:

fruiwehwe

Step-by-step explanation:hjhenrefen

Question 3 of 45
The scatterplot shown below represents data for each of the years from 2006
to 2015. The plot shows the percent of people 62 years of age and older who
were working and then retired during each of those years. If this trend continued,
which of the following best predicts the percent who retired in 2016?

Answers

Answer:

64%

Step-by-step explanation:

plz I need help!!!!!!!!!!!!!!!!!!

Answers

Answer:

its b

Step-by-step explanation:

It’s b
As latisha is taller than suzanne and Suzanne is taller than Morgan

Write your answer as a decimal rounded to the nearest hundredth

Answers

Answer: 0.17

Step-by-step explanation: There are 5 other letters rather than A. So it would be 1/5 and 1 divided by five is 0.2 which is probally 0.20.

Hope it helps have an wonderful day

0.17 i hope this helps

Use the scale drawing to determine how wide the duck pond is?


A. 7 feet
B. 14 feet
C. 28 feet
D. 42 feet

Answers

D I think I’m so sorry if it’s not
It’s D pls mark Brainly!

Please help. I have 17 points so ill only be giving 10.

Answers

The answer is B. (at least i’m pretty sure it is) :))
i’m pretty sure the answer is B, if it’s wrong sorry

PLEASE PLEASE HELP AND SHOW WORK:))

Answers

Answer:

The correct answer to this question is A.

Step-by-step explanation:

75.00

-24.65

-----------

50.35

A temperature of F degrees Fahrenheit is the same as 5/9
(F–32) degrees Celsius. According to weather records, the highest recorded temperature in the state of Ohio is 113 degrees Fahrenheit.
What is the record high temperature in degrees Celsius?
Write your answer as a whole number or decimal.
degrees Celsius

Answers

Answer:

113 degrees Fahrenheit is 45 degrees Celsius

Step-by-step explanation:

Hope this helps

it costs 15 for one surfing lesson and 25 per day to rent a surf board write an expression for the total cost of one lesson and renting a surf board for y days

Answers

Answer:

15+25y= total cost

Step-by-step explanation:

this is easy

Answer:

25y + 15 = x

Step-by-step explanation:

I think this is the answer, it does not say that lessons are paid for every day.

Yo can someone help me with this problem?

Answers

Answer:

1. 8m = 800 cm

area = 5 x 800 = 4000 / 2

= 2000 cm

2. 10 x 14 = 140

140 / 2

= 70 cm

Step-by-step explanation:

Tommy Holland rolled a 3 sided die TWICE. Using a TREE DIAGRAM, show how many possible outcomes there are. Feel free to use https://sketch.io/sketchpad/ or upload a photo of your work.

Answers

Answer:

i think it is is a lest 24

Step-by-step explanation:

Students were surveyed about the time they wake up on school mornings. The results are shown in the table.


Survey Results

Time Range Number of Students

Before 6:00 3

6:00-6:30 13

After 6:30 4


Out of 500 students in the school, what is the BEST prediction for the number of students who wake up after 6:30?

Answers

3+13+4=20 500/20=25 25•4= 100 so 100 should be the answer
The answer to your question is 100.

write a proportion for the value of ?
(2 separated questions)

Answers

Answer:

2

Step-by-step explanation:

Because the lenthe of one side is 8 and the lenth of the other is 16 so 16/8=2, so you could use 2 to get 6 from 3x2.

The first one is 2 and the second one is 7

Steve flipped a coin 10 times and recorded his results in this chart.

Part C: Did Steve’s EXPERIMENTAL result match the THEORETICAL probability of a coin landing heads up? If the probabilities are not the same, explain at least one possible reason for the difference.

Answers

They are not the same but very close, the reasoning for this is that theoretical things are not 100% accurate therefore meaning that the answers with a real experiment may vary.
it’s 100% accurate i did this before
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