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
the answer is 15, cause if you add 3.5 and 11.5 that equals 15

Related Questions

The sum of two numbers is 35. The difference of these two numbers is 17. Find the two numbers.

Answers

Answer:

x + y = 35

17 + y + y = 35

17 + 2y = 35

2y = 18

y = 9

x + y = 35

x + 9 = 35

X = 26

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

Sum = 26 + 9 = 35

I have two questions and one will be on topic so please don't report.

1. Can someone give me a summary of Linear relationships? I still can't get a grip on it which is making me fail math.
&
2. Why do people report the memes on here? Like they are supposed to be left here and uplifting. Not deleted and forgotten just because.

Answers

Linear is basically a straight line on a graph and in a table when why changes it choice change the same amount through out for example 3,6,9,12,15 it’s by three if it’s like 2.1.3.3 it wouldn’t be linear bcuz it goes -1,+2,0

You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the​ box?
What is the decimal expansion for 12
2
3​?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me

Answers

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

plsplpl,pllpplplplplplplplplpllpplpl help

plsplpl,pllpplplplplplplplplpllpplpl help

Answers

Answer:

assignment

Step-by-step explanation:

sry if i wrong

assignment
because you are assigned a mission

Which equation has the solution x = 3? Select each correct answer. Responses 5x−7=1 5 x minus 7 equals 1 9−3x=0 9 minus 3 x equals 0 2x + 4 = 10 2, x, + 4 = 10 3x + 1 = 9 3, x, + 1 = 9 9x−1=4 9 over x end fraction minus 1 equals 4 x3+5=6 x over 3 end fraction plus 5 equals 6 (dont answer)

Answers

Answer:

Step-by-step explanat

none of them

Mrs. Gomez is buying a triangular table for the corner of her classroom. The side lengths of the table are 5 feet, 3 feet, and 2 feet
Is this a triangular table a right triangle?

Mrs. Gomez is buying a triangular table for the corner of her classroom. The side lengths of the table

Answers

Answer:

The answer to your problem is, D. Yes, because 2 + 3 = 5.

Step-by-step explanation:

Refer to the converse of the pythagorean theorem. We need to have both sides equal to each other to have a right triangle.

So we need to have:

\(a^{2} + b^{2} = c^{2}\)

We would need to fill out the problem and replace A, B, and C. Which leads to either being B or D

The longest side is the hypotenuse and the value of c.

Thus the answer to our problem is, D. Yes, because 2 + 3 = 5

The answer is A no, becuase I’m order to find out if it’s a right angle u must multiply and add 2x2 = 4 and 3x3= 9 those numbers together equal 13 and 5x5 =25. 13 does not equal 25 therefore it is not a right triangle

Model -5 + (-6) on the number line

Model -5 + (-6) on the number line

Answers

the answer is -11 :) hope this helps.
11! It goes on 11 !!

25 students were randomly sampled about their favorite class,
Math=18 students
Science=2 students
English=2 students
Other=3 students
Predict the number of students in an entire school of 300 students whose favorite subject is math.

Answers

Math = 18/25 = 0.72 = 72%

300 x 0.72 = 216 students

This data set shows the daily number of visitors who used the yoga center at the park. The numbers in blue show the numbers for weekends. Daily Number of Visitors 13 15 12 18 9 18 20 15 22 26 24 12 29 12 18 8 16 17 21 19 38 24 37 27 32 34 28 31 15 Select the correct answer. For how many days were the numbers of visitors recorded? A. 27 B. 28 C. 29 D. 30 E. 31

Answers

The answer would be
C. 29
We know this by counting the amount of numbers given for the data set
I don’t know to be real

The height of a rocket launched with an initial velocity of v feet per second is represented by the equation d = 3 + vt – 16t2, where t is the number of seconds after launch. With what initial velocity must the rocket be launched to reach a height of 255 feet in 3.5 seconds?

Answers

Dawg I which I could help ya out beiendbjdmd hdmdbdhdke dvejembdjdme be no o no o no

Answer:

i do not know

Step-by-step explanation:

can someone help me I’ll mark you brainlest

can someone help me Ill mark you brainlest

Answers

Answer:

Typist 1 = 350

Typist 2=1050

Step-by-step explanation:

Answer:

Step-by-step explanation:

175 for the first

880 for the second

Pls help! 6th grade math IXL!

Pls help! 6th grade math IXL!

Answers

560 cubic inches

Step-by-step explanation:

5×14×8

(5×14)×8

70×8

560

Answer:

1. The answer on the right ( 14 x 8 x 5 =v)

2. 600 ft^3

Step-by-step explanation:

To find volume of a rectangular prism, you multiply length x width x height and then multiply that by 2.

What is the area of this figure? IXL assignment

What is the area of this figure? IXL assignment

Answers

I solve the problem. I think this is right I got the answer of 128

Answer:

The answer should be 128? Let me know if i'm wrong.

At the start of the day, the temperature in London was -4.5 degrees Celsius, as shown on the
thermometer below. During the day, the temperature first increased by 6.5 degrees Celsius and then decreased by 2.5 degrees Celsius by midnight. What is the temperature at midnight?

Answers

Answer:

6,436

Step-by-step explanation:

6,436 I think so I am mot sure

Your fitness tracker overestimates the number of steps you take by 5%. The trackers indicates that you took 7350 steps today. Write and solve an equation to find the actual number of steps you took today.

Answers

you would have taken 367.5 steps. you would divide 10% of the number by 2. to find 10% of the number you move the decimal point of one place

The equation (1 + 0.05)x = 7350 to find the actual number of steps you took today will be 7,000.

What is the percentage?

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.

Your fitness tracker overestimates the number of steps you take by 5%. The trackers indicate that you took 7350 steps today.

Let x be the actual number of steps. Then the equation will be given as,

(1 + 0.05)x = 7350

x = 7350 / 1.05

x = 7,000

The actual number of steps you took today will be

(1 + 0.05)x = 7350

x = 7350 / 1.05

x = 7,000

The equation (1 + 0.05)x = 7350 to find the actual number of steps you took today will be 7,000.

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ2

Find the perimeter.

32 in.
24 in.
36 in.
28 in.

Find the area.

48 in. 2
64 in. 2
84 in. 2
36 in. 2

The patio at the back of the house is to be extended into the backyard in a semi-circle. What will be the area of the yard after the patio is done?

927 square ft.
456 square ft.
613 square ft.
314 square ft.

Find the perimeter.32 in.24 in.36 in.28 in.Find the area.48 in. 264 in. 284 in. 236 in. 2The patio at
Find the perimeter.32 in.24 in.36 in.28 in.Find the area.48 in. 264 in. 284 in. 236 in. 2The patio at
Find the perimeter.32 in.24 in.36 in.28 in.Find the area.48 in. 264 in. 284 in. 236 in. 2The patio at

Answers

You got this focus hard

Randy weighs 50 pounds and his father weighs 160 pounds. What is the difference in their weights?
A. 100 lb.
B. 110 lb.
C. 120 lb.
D. 125 lb.

(Would like a explaination too btw)

Answers

The answer is B. Because the different in there weight is calculated by subtracting Randy’s weight ( 50 lb) from his fathers weight (160 lb ) which equals 110 lb.

Answer:

This looks pretty easy. Is this a trick question or what? I might be wrong but the answer seems to be B. 110 lb.

Step-by-step explanation:

Solution:

Given,

weight of Randy = 50 pounds

weight of his father = 160 pounds

difference in their weights = ?

Now,

difference in their weights =

weight of his father - weight of Randy

= 160 - 50

= 110 pounds

Therefore, the difference in their weights is 110 pounds.

Pls help and find both will give brainlest!

Pls help and find both will give brainlest!

Answers

Count all the sides then add them up

A machine cuts lumber into 8-foot planks. Company regulations allow the lengths to vary by 1/2%, which can be either an increase or decrease of 1/2% of the intended length. Find the range of the values allowed by the company's regulations.

A. How do you express 1/2% as a decimal
____ ÷ 100 = _____

B. What is the length, in feet, that the planks are allowed to vary? Remember, the · indicates multiplication.
____ · ____ = ____ foot

C. What is the length of the shortest allowable plank and the longest allowable plank cut by the machine?
Shortest: 8 - ___ = ___ feet
Longest: 8 + ___ = ___ feet

Answers

Answer:

A.

To express 1/2% as a decimal, you divide 1/2 by 100. You can use a fraction bar or a slash to indicate division. Like this:

1/2 ÷ 100 = 0.005

or

1/2 / 100 = 0.005

B.

To find the length that the planks are allowed to vary, you multiply the decimal value of 1/2% by the intended length of 8 feet. Like this:

0.005 · 8 = 0.04 foot

C.

To find the shortest and longest allowable planks, you subtract and add the variation length from and to the intended length of 8 feet. Like this:

Shortest: 8 - 0.04 = 7.96 feet

Longest: 8 + 0.04 = 8.04 feet

I think it’s C hope this helps

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Answers

Answer:

What is it that you need help with?

Step-by-step explanation:

Answer:

In the file, hoped I helped. And hope you get 100%!

P.S. I kinda forgot what the orange one's called, it's like distribution law or distributive property, I dunno which one is right.

helpppppppppppppppppppp

18/50 as a mixed number

Answers

Answer:

2  14/50 simplified to 2  8/25 (all I did was divide 14 and 15 by 2)

Step-by-step explanation:

To convert an improper fraction to a mixed fraction, divide the numerator by the denominator, write down the quotient as the whole number and the remainder as the numerator on top of the same denominator.

18/50 as a mixed number is 2 14/18

At the zoo, for every 666 adult camels, there are 555 baby camels. There are a total of 444444 adult and baby camels at the zoo.
Complete the table.
Original ratio Number in the zoo
Baby camels 555
Adult camels 666
Total camels
444444

Answers

Answer:

1 adult camel for every 11 baby camels, or 1:11

You exercise for 34 of an hour. You jump rope for 13 of that time. In simplest form, what fraction of the hour do you spend jumping rope?

Answers

Answer:

You spend 1/4 of the hour jumping rope. The question states that 1/3 of 3/4 of an hour is spent jumping rope.

Step-by-step explanation:

Answer: You spend 1/4 of the hour jumping rope.

Step-by-step explanation:

The question states that 1/3 of 3/4 of an hour is spend jumping rope

To find this, multiply 3/4 by 1/3


3/4 times 1/3 = 3/12 = 1/4

So one third of 3/4 is 1/4

The mean of four numbers is 21. The range is 15. The greatest number 29.The two middle numbers differ by 3

Answers

Answer: 5

Step-by-step explanation:

The answer to this question is the number 5

Write an improper fraction using the following criteria:

• an improper fraction
• the value is between 1 and 5
• the denominator is 7

Answers

Let's take this number:

28/7

WHY this number fits the criteria?

It's an improper fraction since the numerator is higher than the denominatorIt's value IS between 1-5 because 28 divided by 7 = 4, 4 is in middle of 1-4The denominator IS 7

How did I find this number?

I did 7x4 to get the numerator, so that it would be between 1-5And I made sure that it's an improper fractionAnd also, I made sure that the denominator is 7

Hence, 28/7 can be one answer

(note: there are MANY answers to this question)

21/7

Divide 21(numerator) by 7 (denominator) and you get 3 which is between 1 and 5

What are the factor pairs of 55 and 5? im on my sisters account.

What are the factor pairs of 55 and 5? im on my sisters account.

Answers

Answer:

The factor pairs of 55 and 5 are 1,5,11, and 55

Step-by-step explanation:

55 = 1 x 55 or 5 x 11. Factors of 55: 1, 5, 11, 55. Prime factorization: 55 = 5 x 11.

Answer:

The factor pairs of 55 are 1, 5, 11, 55.

T factor pairs of 5 are 1,5.

Step-by-step explanation:

Hope this helps! :)

How would I answer this

How would I answer this

Answers

Answer:

can u turn ur picture around it is upside down?

Step-by-step explanation:

after that i can help!

Answer: To turn your screen with "Ctrl + shift + ⟳"

answer this please
I'll give u brainliest ​

answer this pleaseI'll give u brainliest

Answers

Answer:

hi

Step-by-step explanation:

hi

Monomials should only consist of one term. So your reasoning should be that theirs too many terms (monomials don’t have negative exponents) , hope this helps!

At a school cafeteria, a staff person surveyed the food preferences of 35 students. For every five students, two said they liked liked heathy food. How many students preferred heathy foods.

Answers

Answer: 14 students.

Step-by-step explanation:

7 students preferred heathy food

The area of a circle, in terms of π, is 100πm2.Find the value of the radius.
VERY URGENT
CORRECT ANSWER GETS BRAINLIEST

Answers

The area for a circle initially is piR^2. We know the radius is in the units meters because of the m^2.

Now, to find R, simply take the square root of the 100 from which they already gave you. You get a radius of 10 meters.

Note, plugging in 10 into the actual formula for area, gives you the same answer they gave you

Answer :

\(radius = 10\)

The area of a circle, in terms of , is 100m2.Find the value of the radius.VERY URGENT CORRECT ANSWER
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