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

When triangle ABC was dilated by a scale factor of 2, centered at the origin, the result
was its image triangle A’B’C’. The vertices of triangle A’B’C’ are A’(-4,4), B’ (-4,6) and C’ (2,4).

Answers

Answer:

A

Step-by-step explanation:

A. A(-8,8) B(-8,12) C(5,8) I think

Cindy claims that 4^x/12^x = 1/3
What is a single-digit whole number that supports her claim?

Answers

Answer:

x=1

Step-by-step explanation:

guys please help i’m nearly on 23% and i need to get to 82%- giving brainlest
-no links
-no unnecessary comments
i will take my points back if you put any links or unnecessary comment, thank you.

Answers

add the numbers they equal 30 then u divide 30 by 2 since it’s an odd number and you get 15. so 15 is your answer
15 is the correct answer
The answer I I’ve me goes a bit more in depth

someone plzz help meeeee thank youuu

Answers

Answer:

The answers a ! Hope this helps

Step-by-step explanation:

nie jestem pewna ale chyba odp A

Find the volume of the given cone.
Pls help me, I am so stuckkkkkkkk!

Answers

Answer:

A

Step-by-step explanation:

V = 1/3 π r h

V = 1/3 (π)(5)(15)

V = 25π

John plans to practice piano at least 2 1/2 hours this weekend.
If he practices 1 1/ 6 hours on Saturday and 1 1/4 hours on Sunday, will he meet his goal?

Answers

2 hours 30 minutes = goal

Saturday = 1 hour 10 minutes
Sunday = 1 hour 15minutes
Total = 2 hours 25 minutes

No he will not meet his goal. He will be short 5 minutes of practice.

A store pays $71 for a guitar and marks the price up by 20%. What is the new price?

Answers

20% of 71 is 14.20
71+14.20=£85.20
hope this helps

what is 6 x 18 using the distributive property

Answers

Answer:

108 is the answer and there is no explanation for this. Youc can directly multiply it.

Answer:

648

Step-by-step explanation:

There is no distributive property necessary. You would use distributive property in a problem like a(b + c).

a(b + c)

ab + ac

That is distributive property. 6 × 108 doesn't require distributive property.

6 × 108 or 6(108) or 108(6) = 648

Risa is looking at a map. She measures it and sees that on the map her house is 3 inches from her grandma's house. If the map scale is 0.25 inches = 2 miles, how many miles is it from risa's house to her house?

Answers

24 miles, just divide 3 by .25 and multiply the quotient (12) by 2

Answer:

miles 24

Step-by-step explanation:

Divide and  multiply

please help quick!! A fully loaded and fueled spacecraft can weigh close to million pounds. What is this weight converted to​ tons?

Answers

Answer:

itis 500 tons

Step-by-step explanation:

500 tons i think I am not chare

help me!!!!! plzzzzzzzzzzzzzzzzz

Answers

Answer:

85%

Step-by-step explanation:

60-9= 51

51/60 is 85%

It’s 15% because 60-9 = 51 so now you have to find out what percent 51 is out of 60 and it was 85% now you have to find out how much you took off so 100% ( the beginning amount) - 85% ( the percent left after the decrease) = 15%

I need help 8th grade math

Answers

the answer is c i believe
i believe the answer is C

Please give me the right answer

Answers

The answer would be b:)
C is the correct answer

Marie is bringing bagels and cream cheese to school as a birthday snack for her class. The cost of b bagels and c packages of cream cheese is 0.85b+2.5c dollars. Marie is bringing 30 bagels and 2 packages of cream cheese.

Answers

Answer:

$30.50

Step-by-step explanation:

b = bagels

c = cream cheese

Given

b = 30

c = 2

Work:

0.85b+2.5c

0.85(30) + 2.5(2)

25.5 + 5

30.5

The legs of a right triangle are 6 and the square root of 13. Calculate the hypotenuse.

Answers

Answer:

Pythagoras Theorem

Step-by-step explanation:

[tex]a^{2} +b^{2}=c^{2}[/tex]

[tex]6^{2}+ 13^{2}= c^{2}[/tex]

[tex]205=c^{2}[/tex]

[tex]\sqrt{205} = c[/tex]

[tex]14.32 = c[/tex]

help asap progress reports come out tmrw

Answers

Answer:

W 4

Step-by-step explanation:

Z 1 Y 2 X 3 W 4

Answer:

Z 1 Y 2 X 3 W 4

Step-by-step explanation:

Numbers are counting up by one while the alphabet is going backwards.

Find the area and perimeter of the figure on the coordinate system below

Answers

4.5 bc 1.5 x 3 is 4.5
4.5 is your answer yuh get it ig

Braden has m muffins. He splits them evenly among 4 boxes. Write an expression that shows how many muffins are in each box.

Answers

you would write m divided by 4

Answer:

[tex]\frac{m}{4}[/tex]

Step-by-step explanation:

Hi there,

We know that there are a certain number of muffins represented by m. Since the problem states that it is split evenly into four boxes, we can write the expression: [tex]\frac{m}{4}[/tex]. We use division since the total is split up into even groups.

Hope this answer helps. Feel free to ask questions.

Cheers.

Children get a 15% discount on tickets to an amusement park. Jun had a coupon for 5% off any two tickets. He used the coupon for himself and his 4-year-old son, Jack. If regular admission for a ticket was $60, what did Jun pay for the two tickets?

Answers

The amount that Jun paid for the two tickets given the discount rate and the coupon rates is $105.45.

How much was paid for the two tickets?

Discounts and coupons reduce the price of an item.

Cost of the child's ticket after the discount = (100 - 15%) x 60 = $51

Cost of both tickets after the coupon = (100 - 5) x (51 + 60) = $105.45

To learn more about how to calculate discounts, please check: https://brainly.com/question/26061308

#SPJ2

(08.01)Which of the following statements shows a characteristic of a statistical question?

The question is focused.
The distribution can be broken into categories.
The question asks for a quantitative response.
The question allows for surveys to be conducted.

Answers

Answer:

The guy above me already said it, it's C

A circular lawn with a diameter of 20 square feet will be planted with grass seed. How many square feet are on the lawn?

31.4 ft squared
125.6 ft squared
314 ft squared
1,256 ft squared

Answers

Answer:

314 ft squared

Step-by-step explanation:

A = πr^2 = π · 102 ≈ 314.15927

Answer:

314.159265359 ft squared or 314.16 ft squared rounded to the hundredths place. The closest result is option C.

Step-by-step explanation:

The formula for finding the area of a circle is A=π×r^2.

Step 1: Find the radius which is half of the diameter. In this case, the radius is 10 feet.

Step 2: Square the radius that you found. In this case, the number will be 100ft or 10^2.

Step 3: Multiple this number by π, or 3.14 if your teacher allows it. So in this case, 100×π=314.159265359 or 314.16 rounded to the hundredths place. If you use 3.14... the answer is 314.

Step 4: You've got your answer. Hope this helps!

Please help me with this

Answers

Answer:

SeaWolf = 40/100                Nautilus = 100/100      

Step-by-step explanation:

Coach Cliffman made a deposit of $1,800 into an account that earns 2% annual compound interest. Find the amount of interest that Coach Cliffman earned after 3years.

Answers

Answer: 5508$

Step-by-step explanation:

So to find interest your formula is this:

Int=interest rate (percent)*principal

So your problem would be: int=.02*1800

This equals 36. Since its interest, you add your interest (36) and your principal (1800) and get 1836. Now, since you need to find the interest for 3 years, you multiply 1836 by 3.

Step-by-step explanation:

given b(17 5) c(11 -3) d(-1 2) and e(x -6) find the value of x so that bc ll de
WILL GIVE BRAINLIEST

Answers

first find slope of BC
y2-y1/x2-x1
5-(-3)/17-11
8/6
then at point D go 8 down & 6 tot he left
point E (-7,-6)

Please help and explain how you got your answer please!

Answers

Convert 9 1/2 to an improper fraction.

9 1/2 to 19/2

(19/2) / (3/5)

Keep Change Flip

(19/2) x (5/3) = 15.8333333333

The greatest number guest that Carly can serve is 15.

In which container is the probability of randomly selecting a green ball on one draw 4/7?

Answers

Answer:

B

Step-by-step explanation:

B

Answer:

B because 4 green balls in it out of a total of 7 balls

Step-by-step explanation:

A store pays $68 for a desk. The store marks up the price by 20% .What is the amount of the mark-up?

Answers

$81.60

( 20% of $68 is 13.60, so you add $68 and $13.60 and it’s $81.60 )
the marked up price would be $81.60

Help me please with this

Answers

Answer:

Its a

Step-by-step explanation:

A integer is like a whole number by it self

Match each number with its opposite

Answers

Answer:

1-c

2-d

3-a

4-b

Step-by-step explanation:

Find B if the graph of the equation 3x=By+2 is perpendicular to the graph of 3y=-2x+4.
And please do a real answer.

Answers

Answer:

B=1/2

Step-by-step explanation:

whenever a line is perpendicular from the opposite line you completely flip the M, making the answer from -2 to 1/2

Other Questions
100Points! show work In 1917, Horace Albright visited the canyon created by the Virgin River in southwestern Utah. He was amazed at the beauty of the colorful cliffs. Albright determined that this national monument would become a popular tourist destination. The official name of the monument at that time was Mukuntuweap National Monument. It had been named in honor of the Paiutes who lived in the region. Albright thought that the name was difficult to pronounce and proposed a name change. President Woodrow Wilson renamed the monument Zion National Monument, which became Zion National Park in 1919. The number of people visiting the park increased from approximately 300 in 1914 to 1,814 people in 1919.Zion National Park is known for its many hiking trails. The shortest trail leads to one of the popular destinations: Weeping Rock, a cliff face with a hanging garden. Over the years, water made its way through the Navajo sandstone of the cliff, traveling through pores and creating canyons. Eventually, the water encountered a layer of rock that was impermeable. The water was unable to continue down, so it traveled horizontally. At Weeping Rock, the water comes through the pores of the sandstone. The amount of water that flows out of the rock can be a trickle or a stream, giving the impression that the rock is crying. Vegetation grows in shaded areas of the cliff with water coming through the rock. As the plants grow out of the rock face, they give the illusion that they are hanging in the air.In the last century, word spread of Zion National Park's many natural treasures, like the Weeping Rock. Roads, trails, and visitor centers were built. More people traveled to Zion in order to hike, horseback ride, and go canyoneering. The Zion-Mount Carmel Tunnel was constructed by 1930. Visitors still use the tunnel to travel from Zion to the Grand Canyon or Bryce Canyon. Now, park rangers are facing problems created by having too many visitors. 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