Mathematics Middle School

Please answer soon!
Abby, Bart, Cindy and Damon weigh themselves in pairs. Together Abby and Bart weigh 160 pounds, Bart and Cindy weigh 180 pounds, and Cindy and Damon weigh 200 pounds. How many pounds do Abby and Damon weigh together?

Answers

Answer 1

Answer:

180 pounds

Step-by-step explanation:

As you see Abby and Bart are both 160 divide it by 2 and you get 80. Then Cidny and Damon are 200 pounds divide that by 2 you get 100. Add 100 and 80 you get 180 pounds. Hope this Helps

Related Questions

Referring to the Fig. in Question #34, find the slope of

the line through the points B and C.

Referring to the Fig. in Question #34, find the slope of the line through the points B and C.

Answers

Answer:

-1/3

Step-by-step explanation:

m= y2-y1/x21-x1

m= 2-1/-2-1

m= 1/-3

m= -1/3

The answer is -1/3 to your problem

Can you solve this for me? Thank you! :>

Can you solve this for me? Thank you! :>

Answers

Answer:

Whatever you do one one side of the equal sign, you must do on the other side.

Step-by-step explanation:

It’s D “Whatever you do to one side of the equal sign, you must copy and do on the other side of the equal side.

Find the value of x so that m||n

Find the value of x so that m||n

Answers

Answer:x=17

Step-by-step explanation:

Set 6x+5+5x-12 equal to 180

Simplify into 11x-7=180

Add 7 to both sides to get 11x=187

Divide both sides by 11 to get x=17

Answer:

The value of x is -17

The 6x+5 angle would be 97-degree angle and the 5x-12 angle would be  a 45-degree angle

I hope this helps.

A recipe requires 5.5 teaspoons of sugar to make a cheesecake. Which equation shows the number of teaspoons of sugar, y, needed to make x cheesecakes? (1 point) a x = 5.5b y = 5.5 + x = 5.5x = 5.5 + y Sorry I suck at math

Answers

It is 5.5x=y, because u need to see how many sugars can go into the total number of cheesecakes

Of 58 cars making up a freight​ train,47 are boxcars. What fraction of the cars are not​ boxcars?
The fraction of the cars that are not boxcars is __ .

Answers

The fraction of the cars that are not boxcars is 11 because if u subtract 58-47 u get 11

Answer:

The answer is 11/58

Step-by-step explanation:

58-47=11

Then we put 11 into the fraction

58 is the total number of cars so 58 is the denominator

and 11 is the numerator

11/58

Answer this. Show your work. Worth 10 points. Under 4 hours. URGENT.

Answer this. Show your work. Worth 10 points. Under 4 hours. URGENT.

Answers

The correct answer would be 200 miles. If 30 miles represented 3/5ths of an inch, then 72, 50, and 18 miles would all be too small.
For example 72 miles would only represent a little over an inch, so 200 miles would be the only possibility.
Here’s the work. Hope this helps
Answer this. Show your work. Worth 10 points. Under 4 hours. URGENT.

My little brother needs to know how (8+9)+3 is equivalent to 8+(9+3) and what is the benefit of using that property.

Answers

Answer:

The commutative property let's us know that we can add numbers in any order and the answer will always be the same. 2+4=6 and 4+2=6

No matter how your gonna add it it’s gonna give same results. Connuibtatige property

Mona, Tabitha, and Reid are at a frozen yogurt shop. At the shop, frozen yogurt and toppings are charged by the ounce. The following table shows the weight and cost of each person's bowl.

A. What does the yogurt shop charge per ounce?

B. What should Reid's bowl cost?

Mona, Tabitha, and Reid are at a frozen yogurt shop. At the shop, frozen yogurt and toppings are charged

Answers

Answer:

A.$0.45

B.$3.51

Answer:

Step-by-step explanation:

A. They will charge forty-five cents per ounce.

B. They will charge  Reid  $3.51 for her bowl.

Express the following sums and summation notation.

pls help me, i need this for tomorrow

Express the following sums and summation notation.pls help me, i need this for tomorrow
Express the following sums and summation notation.pls help me, i need this for tomorrow

Answers

For question 6 the answer is 91 just add the numbers

91 is correct for number 6

Please help i’ll give brainliest!

For which set of data are the median and mode the same number?

A. 4, 5, 7, 7, 8, 10
B. 3, 5, 6, 8, 8, 9
C. 5, 5, 6, 8, 9, 10
D. 4, 5, 7, 8, 9, 9

Answers

Answer: A

Step-by-step explanation:

median: 7+7=14

14/2=7✅

mode: 7 shows up the most (twice)

I will have to say as I the first person that is on top of my comment the answer is A

The points (5.6) and (25,30( form a proportional relationship. Find the slope of the line through the points. Then use the slope to graph the line


The slope is ( ??? )

Answers

Answer:

I assum you me (5,6) (25,30)

m= \(\frac{6}{5}\) or m= 1.2

Step-by-step explanation:

You can find slope by using this formula: m= \(\frac{y2-y1}{x2-x1}\)

Subtract the numbers : \(\frac{24}{20}\)Reduce the fraction : \(\frac{6}{5}\)

Todd has created the following diagram to prove the Pythagorean theorem. He drew (triangle)ABC with leg lengths a and b and hypotenuse length c. Then he drew altitude CZ to the hypotenuse. He determines that c/a=a/z and c/b=b/y. Then he determines that cx=a^2 and cy=b^2. What is the next step in proving the theorem?

Todd has created the following diagram to prove the Pythagorean theorem. He drew (triangle)ABC with leg

Answers

Answer:

cx + cy = a² + b²

Step-by-step explanation:

Next step is adding up cx and cy:

cx + cy = a² + b²

Then followed by:

c(x+y) =  a² + b²c² =  a² + b²

Answer: cx + cy = a² + b²

Step-by-step explanation:

someone explain this?

someone explain this?

Answers

\(5\sqrt{96}\).
I converted it into decimal form with a calculator and got approximately 48.9898

And if you round that, you will get the 49, which fits the inequality of

45<  \(5\sqrt{96}\) < 50 since it becomes 45 < 49 < 50 which is true

it’s A you multiply 5 and square root of 96 to get 49.989

The length of 9 ants measure 3.51 inches. What is the length of 25 ants measured in inches if each ant is 1 cementer long?

A. 32.2 inches
B. 9.8 inches
C. 15.6 inches
D. 31.6 inches

Answers

Answer:

if 9 ants=3.51inches

25 ants =x

therefore by cross multiplication

x= 25*3.51 /9 =9.8 inches

answer:B

B. 9.8 inches is the answer

Use 3.14 to estimate the unknown measures for each circle
C=132in
d=?
r=?
A=?

Answers

π = 3.14

C = πd
132 = πd
d = C ÷ π
d = 132 ÷ 3.14
132 ÷ 3.14 = 42.03821656050955
d = 42.03821656050955 / 42.04 to 2dp

r = d ÷ 2
r = 42.03821656050955 ÷ 2 = 21.01910828025478 / 21.02 to 2dp

A = r * r
A = 21.01910828025478 * 21.01910828025478 = 441.8029128971 / 441.80 to 2dp

d = 42.04 to 2dp
r = 21.02 to 2dp
A = 441.80 to 2dp
This how I did it,
So d= 42.04( round up)
R=21.01(round up)
A=1386(round up)
Use 3.14 to estimate the unknown measures for each circle C=132in d=? r=?A=?

what is the maximum number of 14 pound turkeys that can be purchased with the money donated while still purchasing 100 total turkeys? 10 pound turkeys cost 9.25 and 14 pound turkey cost 12.75. Money limit is $1000.

Answers

Answer:

64.05$

Step-by-step explanation:

Angles PQR and RQS share a common side and together
form a right angle. The measure of more than the measure of Explain how you found your answer.

Answers

Answer:

 

Step-by-step explanation:

Do you have a pic of the question?

Simplify and evulate 3^3 ⋅ 3^2

Answers

Answer: 243

Step-by-step explanation:

3³×3²

27×9=243

answer = 243
hope it helps

Which of the following lists is in order from smallest to largest? 1.4, 1/4 ,14% 1/4 , 14%, 1.4 14%, 1/4 , 1.4 1.4, 14%, 1/4

Answers

Firstly, I noticed that there are fractions, decimals, and percents. I will change everything to percents, so it’s more easy for me to compare each of them.

List 1. 140%, 25%, 14%. This is from greatest to least, not least to greatest.
List 2. 25%, 14%, 14%. This is not from least to greatest, either.
List 3. 14%, 25%, 140%. This is from least to greatest.
List 4. 140%, 14%, 25%. This is not from least to greatest.

List 3 is from least to greatest. I got this answer by converting all of the fractions and decimals to percentages.

Simplify (24)−1.


one over two raised to the power of negative four

one over two raised to the fourth power

−2 raised to the 4

2 raised to the 3

Answers

-24 PEMDAS the money step to complete here is multiply the two number
1/16 because -1/2* -1/2= 1/4*-1/2*=-1/8*-1/2=1/16
1/8
8 because 2*2=4*2=8

The expression (2⁴)⁻¹ is simplified as one over two raised to the fourth power. Then the correct option is B.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.

The expression is given below.

⇒ (2⁴)⁻¹

We know that a⁻ⁿ = 1 / aⁿ, then the value of the expression is given below.

⇒ 1/ (2⁴)

The expression (2⁴)⁻¹ is simplified as one over two raised to the fourth power. Then the correct option is B.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

We need to fill a rectangular cooler with Kool-Aid for after the kickball
game. If the dimensions of the cooler are 48 inches by 22.6 inches by 18.3
inches, what is the maximum amount of Kool-Aid it will hold?

Answers

Answer: The maximum amount of Kool-Aid that the cooler can hold is 19,915.04 cubic inches.

Step-by-step explanation:To calculate the maximum amount of Kool-Aid that can be held in the rectangular cooler, we need to find the volume of the cooler. The formula for calculating the volume of a rectangular prism is V = lwh, where l is the length, w is the width, and h is the height.

Substituting the given values, we get:

V = 48 inches x 22.6 inches x 18.3 inches

V = 19,915.04 cubic inches

Please Help
12+1/3c-36=9

Answers

Answer:

c=99

Step-by-step explanation:

Im assuming you mean 12 + (1/3c) - 36 = 9 in which case c=99 you can isolate c by combining 12 and -36, creating -24 and adding 24 on both sides making 1/3c=33, then multiplying both sides by 3 making c=99

and not

1) (12+1)/(3c-36)=9 ; c=12.48 or 12+13/27

2) (12+1)/3c -36=0; c=0.09629

12+ 1/3c-36=9
12-36 =24
-------
1/3c = 33
----- -----
1/3 1/3
c = 11

Find the surface area of the regular pyramid. The surface area is square inches.

Answers

Answer:225 square inches

Step-by-step explanation:

Answer:

225

Step-by-step explanation:

what is the answer i need the answers now pls pls pls pls

what is the answer i need the answers now pls pls pls pls

Answers

the answer is 44:9 also diff
44/9 this is the answer
………………………………….

Find the perimeter of this shape.

Find the perimeter of this shape.

Answers

Answer:

draw a line that makes a triangle and rectangle.

hypotenuse= 30

3k-4k-5k triangle

18-24-30

so the short part of triangle is 18 cm

10+10+18+24+30 equals 92

sorry for language I am not familiar with English

the perimeter of this shape is

24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm

Evaulate each expression when n = 2.3

N + 8n2 - 17=

Answers

Answer: 27.62

Step-by-step explanation:

plug in 2.3 wherever 'n' is

I'm assuming that the '2' in 8n2 is an exponent

2.3 + 8(2.3)² - 17 =

Using PEMDAS

start out with exponent since there isn't any parenthesis  

(2.3)² = 5.29

2.3 + 8(5.29) - 17

move on to multiplication

8(5.29) = 42.32

2.3 + 42.32 - 17

with addition and subtraction, you do whichever comes first and since this equation starts with addition we'll start there

2.3 + 42.32 = 44.62

then the subtraction

44.62 - 17 = 27.62

Answer:

Step-by-step explanation:

The answer is 27.62

The speed of the jet Alyssa flew on from Boston to London was 480 mph. On her return flight, the speed of the jet was 600 mph with a tail wind. What was Alyssa's average speed on the round trip? Round your answer to one decimal place.

P.S: The answer is not 540

Answers

Answer:

the ansere is -20

Step-by-step explana

The speed is given by the arithmetic mean. Then the jet Alyssa's average speed on the round trip is 540.

What is the average speed?

The total distance covered by the particle or the body in a total time is called average speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the average speed formula

\(\rm v_{a} = \dfrac{v_1+ v_2}{2}\)

The speed of the jet Alyssa flew on from Boston to London was 480 mph.

On her return flight, the speed of the jet was 600 mph with a tailwind.

Then the average speed of the jet will be

\(\rm v_{a} = \dfrac{v_1+ v_2}{2}\\\\v_{a} = \dfrac{480 + 600}{2}\\\\v_{a} = 540\ mph\)

More about the average speed link is given below.

https://brainly.com/question/7359669

i need help with this TnT

Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles will he need?

i need help with this TnT Dmitri wants to cover the top and sides of this box with glass tiles that are

Answers

all u are doing is adding them up

a pair of jeans cost 35.00. the sales tax is 7%. how much is the sale tax?

Answers

Answer:

2.45

Step-by-step explanation:

$2.45

we know that because you take the 35.00, move the decimal point on 7% and times 35.00 by the .7. Making 2.45 dollars!

Hope this helps!

plz help me I need to have this done right now

plz help me I need to have this done right now

Answers

Answer:

Btw I got this answer from gauth.math
plz help me I need to have this done right now
360°-90°=270°

2πr x270°/360°
=2πr x 3/4
=2 x 3.14 x 2 x 3/4
= 9.42
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